Astronomy with IGRINS

IGRINS was designed and built to address a variety of astronomical problems, many remaining after past years of using IR and submillimeter spectroscopy from other facilities to study the dense interstellar medium, star formation, and the early evolution of stars and planetary systems across the mass spectrum. The broad spectral reach and high spectral resolution of IGRINS make it a powerful instrument to attack these problems. We describe here some of the research programs with the instrument.

First, we highlight our research team at UT Austin, and also add that IGRINS research spans beyond our local team. Our group is welcome new ideas and new collaborations, and the IGRINS publication record is reflective of this.


The IGRINS instrumentation and research team. Top row (from left): Jacob McLane (now at University of Wyoming), Ben Kidder, Greg Mace, Dan Jaffe, Kyle Kaplan (now a postdoc at Steward Observatory), Cindy Brooks. Second row: Kim Sokal, Sierra Hickman, Hwihyun Kim (now an Assistant Scientist at Gemini Observatory), Jessica Luna.

IGRINS research team at UT Austin:

Prof. Daniel Jaffe, Vice President of Research
Dan is our bold leader and the IGRINS P.I., responsible for the creation of this revolutionary instrument and for maintaining and expanding its scientific worth.

Dr. Gregory Mace, Research Associate
Greg, previously the IGRINS postdoc, has taken care of IGRINS (along with Dr. Hwihyun Kim) as an instrumentalist and observer since its commissioning. He employs IGRINS to study the substellar boundary and low-mass stars, with a specific interest in all things related to brown dwarfs.

Dr. Kimberly Sokal, Postdoctoral Fellow
Kim is the new IGRINS postdoc. She is using the high spectral resolution of IGRINS spectra and MoogStokes, synthetic spectra including the effects of magnetic fields, to scrutinize the current evolutionary scheme of Young Stellar Objects (YSOs).

Benjamin Kidder, 4th year graduate student
Ben, torn between developing a method to obtain low-resolution excess spectra (veiling) from IGRINS data and exciting emission line detections in YSOs, is working with both to enhance our understanding of disks around YSOs.

Jessica Luna, 3rd year graduate student
Jessica is a NSF Graduate Research Fellow working with Dr. Matteo Brogi (Warwick University) to use IGRINS spectroscopy and advanced observational techniques to observe the atmospheres of non-transiting hot Jupiters.

Science topics addressed with IGRINS:

Young Stellar Objects:

Low-mass pre-main sequence stars are cool and often enshrouded within their dusty natal clouds. At short wavelengths, excess accretion emission and at long wavelengths excess emission from a protoplanetary disk veil the stellar photosphere. In the near-infrared, these excesses are at a minimum and we can characterize the stars by using high-resolution spectroscopy to measure their effective temperatures, gravities, rotation rates, and magnetic field strengths, or alternatively, we characterize the disks themselves.

Science example: "IGRINS Spectroscopy of Class I Sources: IRAS 03445+3242 and IRAS 04239+2436” by Lee et al. 2016:


Figure 1: The IGRINS K-band spectra of two Class I sources observed at different epochs, as shown by different colors. The CO features here suggest evidence for Keplerian disks. To quote this work, “This study demonstrates the power of IGRINS as a tool for studies of the sub-AU-scale hot and AU-scale warm protoplanetary disks with its simultaneous coverage of the full H and K bands with high spectral resolution (R = 45,000) allowing many aspects of the sources to be investigated at once” (Lee et al 2016).

Dense Interstellar Medium:

Most of the dense interstellar gas in the Galaxy is in photodissociation zones where UV radiation dominates the energetics and the chemistry. Amongst many lines observable with IGRINS, near-IR molecular hydrogen lines let us probe both these regions and regions where turbulence or organized flows have shocked the molecular gas. IGRINS is able to observe H2 lines from a broad range of excitation states simultaneously and to use both line widths and velocities to help distinguish shocked and photoexcited gas.

Science example: "Discovery of Rubidium, Cadmium, and Germanium Emission Lines in the Near-infrared Spectra of Planetary Nebulae” by Sterling et al. 2016:


Figure 2: IGRINS observations showing [Rb IV] 1.5973 and [Cd IV] 1.7204 μm emission lines in the planetary nebulae (PNe) NGC 7027 and IC 5117, as well as [Ge VI] 2.1930 μm in NGC 7027. Left - 2D profiles of n-capture element lines detected in NGC 7027, with apertures used for flux extraction. Right panels: 1D profiles of n-capture transitions in IC 5117, including the non-detection of [Ge VI]. Gray shading indicates 1-σ uncertainties. From Sterling et al. 2016.

Planets and Exoplanets:

The high resolution and sensitivity of IGRINS is optimal for obtaining orbital information about exoplanets.

Science example: "Zodiacal Exoplanets in Time (ZEIT). I. A Neptune-sized Planet Orbiting an M4.5 Dwarf in the Hyades Star Cluster” by Mann et al. 2016:


Figure 3: IGRINS observations of a planetary system containing a young super-Neptune, whose discovery was press worthy. RVs from IGRINS are phased to the planetʼs orbital period (top, 3.485 days) and starʼs rotation period (bottom, 1.88 days), with repeat measurements shown in gray. From Mann et al. 2016.

Stellar Spectroscopy:

IGRINS has many applications in stellar spectroscopy. For example, the first IGRINS science paper highlighted the exquisite detail available with IGRINS: “High Resolution Optical and NIR Spectra of HBC 722” by Lee et al. 2015:


Figure 4: IGRINS spectrum of the star HBC 722 (black line), a recent FU Orionis object that underwent an accretion burst in 2010, displays neutral metal lines and the CO overtone transitions show a double-peaked profile. For comparison, a K5-type stellar spectrum convolved with a rotational profile (blue; red shows the original) is shown. From Lee et al. 2015.

IGRINS Publications :

Refereed Journals:

  • H2, CO, and Dust Absorption through Cold Molecular Clouds
    Lacy, J.H., Sneden, C., Kim, H., & Jaffe, D.T. ADS

  • The Spectrum of SS 433 in the H and K Bands
    Robinson, E.L., Froning, C.S., Jaffe, D.T., Kaplan, K.F., Kim, H., Mace, G.N., Sokal, K.R., & Lee, J.-J. ADS

  • Excitation of Molecular Hydrogen in the Orion Bar Photodissociation Region from a Deep Near-infrared IGRINS Spectrum
    Kaplan, K.F., Dinerstein, H.L, Oh, H., Mace, G.N., Kim, H., Sokal, K.R., Pavel, M.D., Lee, S., Pak, S., Park, C., Sok Oh, J., & Jaffe, D.T., 2017, ApJ, 838, 152 ADS

  • Infrared diffuse interstellar bands
    Galazutdinov, G.A., Lee, J.-J., Han, I., Lee, B.-C., Valyavin, G., Krelowski, J., 2017, MNRAS, 467, 3099 ADS

  • EPIC 220204960: A Quadruple Star System Containing Two Strongly Interacting Eclipsing Binaries
    Rappaport, S., Vanderburg, A., Borkovits, T., Kalomeni, B., Halpern, J.P., Ngo, H., Mace, G.N., Fulton, B.J., Howard, A.W., Isaacson, H., Petigura, E.A., Mawet, D., Kristiansen, M.H., Jacobs, T.L., LaCourse, D., Bieryla, A., Forgacs-Dajka, E., & Nelson, L., 2017, MNRAS, 467, 2160 ADS

  • Placing the Spotted T Tauri Star LkCa 4 on an HR Diagram
    Gully-Santiago, M.A., Herczeg, G.J., Czekala, I., Somers, G., Grankin, K., Covey, K.R., Donati, J.F., Alencar, S.H.P., Hussain, G.A.J., Shappee, B.J., Mace, G.N., Lee, J.-J., Holoien, T.W.-S., Jose, J., & Liu, C.-F., 2017, ApJ, 836, 200 ADS

  • Zodiacal Exoplanets in Time (ZEIT). IV. Seven Transiting Planets in the Praesepe Cluster
    Mann, A.W., Gaidos, E., Vanderburg, A., Rizzuto, A.C., Ansdell, M., Medina, J.V., Mace, G.N., Kraus, A.L., & Sokal, K.R., 2017, AJ, 153, 64 ADS

  • Planets around Low-mass Stars (PALMS). VI. Discovery of a Remarkably Red Planetary-mass Companion to the AB Dor Moving Group Candidate 2MASS J22362452+4751425
    Bowler, B.P., Liu, M.C., Mawet, D., Ngo, H., Malo, L., Mace, G.N., McLane, J.N., Lu, J.R., Tristan, I.I., Hinkley, S., Hillenbrand, L.A., Shkolnik, E.L., Benneke, B., & Best, W.M.J., 2017, AJ, 153, 18 ADS

  • Zodiacal exoplanets in time (ZEIT) – II. A `super-Earth' orbiting a young K dwarf in the Pleiades Neighbourhood
    Gaidos, E., Mann, A.W., Rizzuto, A., Nofi, L., Mace, G., Vanderburg, A., Feiden, G., Narita, N., Takeda, Y., Esposito, T.M., De Rosa, R.J., Ansdell, M., Hirano, T., Graham, J.R., Kraus, A., & Jaffe, D., 2017, MNRAS, 464, 850 ADS

  • Fluorescent H_2 Emission Lines from the Reflection Nebula NGC 7023 Observed with IGRINS
    Le, H.A.N., Pak, S., Kaplan, K.F., Mace, G.N., Lee, S., Pavel, M.D., Jeong, U., Oh, H., Lee, H.-I., Chun, M.-Y., Yuk, I.-S., Pyo, T.-S., Hwang, N., Kim, K.-M., Park, C., Sok Oh, J., Yu, Y.S., Park, B.-G., Minh, Y.C., & Jaffe, D.T., 2017, ApJ, 841, 13 ADS

  • Three-dimensional Shock Structure of Orion KL Outflow with IGRINS
    Oh, H., Pyo, T.-S., Kaplan, K.F., Yuk, I.-S., Park, B.-G., Mace, G., Park, C., Chun, M.-Y., Pak, S., Kim, K.-M., Sok Oh, J., Jeong, U., Yu, Y., Lee, J.-J., Kim, H., Hwang, N., Lee, H.-I., Le, H.A., Lee, S., & Jaffe, D.T., 2016, ApJ, 833, 275 ADS

  • The Eruption of the Candidate Young Star ASASSN-15QI
    Herczeg, G.J., Dong, S., Shappee, B.J., Chen, P., Hillenbrand, L.A., Jose, J., Kochanek, C.S., Prieto, J.L., Stanek, K.Z., Kaplan, K., Holoien, T.W.-S., Maris, S., Johnstone, D., Gully-Santiago, M., Zhu, Z., Smith, M.C., Berseir, D., Mulders, G.D., Filippenko, A.V., Ayani, K., Brimacombe, J., Brown, J.S., Connelley, M., Harmanen, J., Itoh, R., Kawabata, K.S., Maehara, H., Takata, K., Yuk, H., & Zheng, W., 2016, ApJ, 831, 133 ADS

  • A Candidate Young Massive Planet in Orbit around the Classical T Tauri Star CI Tau
    Johns-Krull, C.M., McLane, J.N., Prato, L., Crockett, C.J., Jaffe, D.T., Hartigan, P.M., Beichman, C.A., Mahmud, N.I., Chen, W., Skiff, B.A., Cauley, P.W., Jones, J.A., & Mace, G.N., 2016, ApJ, 826, 206 ADS

  • Zodiacal Exoplanets in Time (ZEIT). III. A Short-period Planet Orbiting a Pre-main-sequence Star in the Upper Scorpius OB Association
    Mann, A.W., Newton, E.R., Rizzuto, A.C., Irwin, J., Feiden, G.A., Gaidos, E., Mace, G.N., Kraus, A.L., James, D.J., Ansdell, M., Charbonneau, D., Covey, K.R., Ireland, M.J., Jaffe, D.T., Johnson, M.C., Kidder, B., & Vanderburg, A., 2016, AJ, 152, 61 ADS

  • The Close Companion Mass-ratio Distribution of Intermediate-mass Stars
    Gullikson, K., Kraus, A., & Dodson-Robinson, S., 2016, AJ, 152, 40 ADS

  • Direct Spectral Detection: An Efficient Method to Detect and Characterize Binary Systems
    Gullikson, K., Kraus, A., Dodson-Robinson, S., Jaffe, D., Lee, J.-E., Mace, G.N., MacQueen, P., Park, S., & Riddle, A., 2016, AJ, 151, 3 ADS

  • IGRINS Spectroscopy of Class I Sources: IRAS 03445+3242 and IRAS 04239+2436
    Lee, S., Lee, J.-E., Park, S., Lee, J.-J., Kidder, B., Mace, G.N., & Jaffe, D.T., 2016, ApJ, 826, 179 ADS

  • Discovery of Rubidium, Cadmium, and Germanium Emission Lines in the Near-infrared Spectra of Planetary Nebulae
    Sterling, N.C., Dinerstein, H.L., Kaplan, K.F., & Bautista, M.A., 2016, ApJ, 819L, 9 ADS

  • The Chemical Compositions of Very Metal-poor Stars HD 122563 and HD 140283: A View from the Infrared
    Afsar, M., Sneden, C., Frebel, A., Kim, H., Mace, G.N., Kaplan, K.F., Lee, H.-I., Oh, H., Sok Oh, J., Pak, S., Park, C., Pavel, M.D., Yuk, I.-S., & Jaffe, D.T., 2016, ApJ, 819, 103 ADS

  • IGRINS Near-IR High-resolution Spectroscopy of Multiple Jets around LkHα 234
    Oh, H., Pyo, T.-S., Yuk, I.-S., Park, B.-G., Park, C., Chun, M.-Y., Pak, S., Kim, K.-M., Sok Oh, J., Jeong, U., Yu, Y.S., Lee, J.-J., Kim, H., Hwang, N., Kaplan, K., Pavel, M., Mace, G., Lee, H.-I., Nguyen Le, H.A., Lee, S., & Jaffe, D.T., 2016, ApJ, 817, 148 ADS

  • Zodiacal Exoplanets in Time (ZEIT). I. A Neptune-sized Planet Orbiting an M4.5 Dwarf in the Hyades Star Cluster
    Mann, A.W., Gaidos, E., Mace, G.N., Johnson, M.C., Bowler, B.P., LaCourse, D., Jacobs, T.L., Vanderburg, A., Kraus, A.L., Kaplan, K.F., & Jaffe, D.T., 2016, ApJ, 818, 46 ADS

  • High Resolution Optical and NIR Spectra of HBC 722
    Lee, J.-E., Park, S., Green, J.D., Cochran, W.D., Kang, W., Lee, S-.G., & Sung, H.-I., 2015, ApJ, 807, 84 ADS

SPIE Papers:

  • 300 nights of science with IGRINS at McDonald Observatory
    Mace, G., Kim, H., Jaffe, D.T., Park, C., Lee, J.-J., Kaplan, K., Yu, Y.S., Yuk, I.-S., Chun, M.-Y., Pak, S., Kim, K.-M., Lee, J.-E., Sneden, C.A., Afsar, M., Pavel, M.D., Lee, H., Oh, H., Jeong, U., Park, S., Kidder, B., Lee, H.-I., Nguyen Le, H.A., McLane, J., Gully-Santiago, M., Oh, J.S., Lee, S., Hwang, N., & Park, B.-G., 2016, SPIE, 9908, 0 ADS

  • Characterization and optimization for detector systems of IGRINS
    Jeong, U., Chun, M.-Y., Oh, J.S., Yuk, I.-S., Oh, H., Kim, K.-M., Ko, K.Y., Pavel, M.D., Yu, Y.S., & Jaffe, D.T., 2014, SPIE, 9154, 1 ADS

  • Mechanical design of mounts for IGRINS focal plane arrays and field flattening lenses
    Oh, J.S., Park, C., Cha, S.-M., Yuk, I.-S., Kim, K.-M., Chun, M.-Y., Ko, K., Oh, H., Jeong, U., Nah, J., Lee, H., Pavel, M., & Jaffe, D.T., 2014, SPIE, 9147, 39 ADS

  • Design and early performance of IGRINS (Immersion Grating Infrared Spectrometer)
    Park, C., Jaffe, D.T., Yuk, I.-S.,Chun, M.-Y., Pak, S., Kim, K.-M., Pavel, M., Lee, H., Oh, H., Jeoung, U., Sim, C.K., Lee, H.-I., Nguyen Le, H.A., Strubhar, J., Gully-Santiago, M., Oh, J.S., Cha, S.-M., Moon, B., Park, K., Brooks, C., Ko, K., Han, J.-Y., Nah, J., Hill, P.C., Lee, S., Barnes, S., Yu, Y.S., Kaplan, K., Mace, G., Kim, H., Lee, J.-J., Hwang, N., & Park, B.-G., 2014, SPIE, 9147, 1 ADS

  • Immersion grating mount design for IGRINS and GMTNIRS
    Moon, B., Wang, W., Park, C., Yuk, I.-S., Chun, M.-Y., & Jaffe, D.T., 2012, SPIE, 8450, 48 ADS

  • Near-infrared metrology of high-performance silicon immersion gratings
    Gully-Santiago, M., Wang, W., Deen, C., & Jaffe, D., 2012, SPIE, 8450, 2 ADS

  • Manufacturing of silicon immersion gratings for infrared spectrometers
    Wang, W., Gully-Santiago, M., Deen, C., Mar, D.J., & Jaffe, D.T., 2010, SPIE, 7739, 4 ADS

  • Preliminary design of IGRINS (Immersion GRating INfrared Spectrograph)
    Yuk, I.-S., Jaffe, D.T., Barnes, S., Chun, M.-Y., Park, C., Lee, S., Lee, H., Wang, W., Park, K.-J., Pak, S., Strubhar, J., Deen, C., Oh, H., Seo, H., Pyo, T.-S., Park, W.-K., Lacy, J., Goertz, J., Rand, J., & Gully-Santiago, M., 2010, SPIE, 7735, 1 ADS

Presentations:

  • New Measurements of s-Process Enrichments in Planetary Nebulae from High-Resolution Near-Infrared Spectra
    Dinerstein, H.L., Karakas, A., Sterling, N.C., & Kaplan, K., 2017, American Astronomical Society Meeting Abstracts, 230, 318.09 ADS

  • High-Resolution Infrared Spectroscopic Observations of the Upper Scorpius Eclipsing Binary EPIC 203868608
    Johnson, M.C., Mace, G.N., Kim, H., Kaplan, K. ,McLane, J., & Sokal, K.R., 2017, American Astronomical Society Meeting Abstracts, 230, 315.09 ADS

  • A Near-Infrared Surface Compositional Analysis of Blue Straggler Stars in Open Cluster M67
    Seifert, R., Gosnell, N.M., & Sneden, C., 2017, American Astronomical Society Meeting Abstracts, 230, 315.05 ADS

  • Field Red Horizontal Branch Star Chemical Compositions from High Resolution Infrared Spectra
    Sneden, C., Afsar, M., Bozkurt, Z., Bocek-Topcu, G., Mace, G.N., Kim, H., Kaplan, K., Kidder, B., & McLane, J., 2017, American Astronomical Society Meeting Abstracts, 230, 315.04 ADS

  • Kinematic Study of Ionized and Molecular Gases in Ultracompact HII Region in Monoceros R2
    Kim, H., Lacy, J.H., & Jaffe, D.T., 2017, American Astronomical Society Meeting Abstracts, 230, 215.05 ADS

  • A Comparative Study of H2 Excitation and Physical Conditions in Interstellar and Circumstellar Photo-dissociation Regions
    Kaplan, K., Dinerstein, H.L., & Jaffe, D.T., 2017, American Astronomical Society Meeting Abstracts, 230, 215.03 ADS

  • H2, CO, and dust absorption through cold molecular clouds
    Lacy, J.H., Sneden, C., Kim, H., & Jaffe, D.T., 2017, American Astronomical Society Meeting Abstracts, 230, 215.02 ADS

  • Center Finding Algorithm on slit mask point source for IGRINS (Immersion GRating INfrared Spectrograph)
    Lee, H.-I., Pak, S., Lee, J.-J., Mace, G.N., & Jaffe, D.T., 2017, American Astronomical Society Meeting Abstracts, 230, 117.21 ADS

  • Direct Imaging Discovery of a Remarkably Red Planetary-Mass Companion
    Bowler, B.P., Liu, M.C., Mawet, D., Ngo, H., Malo, L., Mace, G.N., McLane, J., Lu, J., Tristan, I., Hinkley, S., Hillenbrand, L., Shkolnik, E.L., Benneke, B., & Best, W.M.J., 2017, American Astronomical Society Meeting Abstracts, 229, 120.08 ADS

  • The Zodiacal Exoplanets in Time (ZEIT) Survey
    Mann, A., Gaidos, E., Newton, E.R., Rizzuto, A.C., Vanderburg, A., Mace, G.N., & Kraus, A.L., 2017, American Astronomical Society Meeting Abstracts, 229, 104.06 ADS

  • The Spectrum of SS 433 in the H and K Bands
    Robinson, E.L., Froning, C.S., Jaffe, D.T., Kaplan, K., Kim, H., Mace, G.N., Sokal, K.R., & Lee, J.-J., 2017, American Astronomical Society Meeting Abstracts, 229, 344.01 ADS

  • Probing the conditions within Photo-dissociation Regions with high resolution near-infrared spectroscopy of UV-excited molecular hydrogen
    Kaplan, K., Dinerstein, H.L., & Jaffe, D.T., 2017, American Astronomical Society Meeting Abstracts, 229, 311.06 ADS

  • Determining Vsin(i) of Young Planet-hosting Stars
    Medina, J.V., & Mann, A.W., 2017, American Astronomical Society Meeting Abstracts, 229, 245.08 ADS

  • Instruments at the Lowell Observatory Discovery Channel Telescope (DCT)
    Jacoby, G.H., Bida, T.A., Fischer, D., Horch, E., Kutyrev, A., Mace, G.N., Massey, P., Roe, H.G., & Prato, L.A., 2017, American Astronomical Society Meeting Abstracts, 229, 155.02 ADS

  • A near-infrared surface compositional analysis of blue straggler stars in open cluster M67.
    Seifert, R., Gosnell, N.M., & Sneden, C., 2017, American Astronomical Society Meeting Abstracts, 229, 154.21 ADS

  • IGRINS on the DCT
    Prato, L.A., 2017, American Astronomical Society Meeting Abstracts, 229, 126.06 ADS

  • Measurement Of Starspot Properties By Forward Modeling Igrins Spectra Of LkCa4
    Gully-Santiago, M., Herczeg, G., & Czekala, I., 2016, The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, 86 ADS

  • Stellar Radial Velocities with IGRINS at McDonald Observatory
    Mace, G., Jaffe, D., Park, C., & Lee, J.-J., 2016, The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, 55 ADS

  • Stars and their Environments at High-Resolution with IGRINS
    Mace, G., Jaffe, D., Kaplan, K., Kidder, B., Oh, H., Sneden, C., & Afsar, M., 2016,The 19th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, 54 ADS

  • Supernova Remnants in the UWIFE and UWISH2 Surveys
    Lee, Y.-H., Koo, B.-C., & Lee, J.-J., 2016, Supernova Remnants: An Odyssey in Space after Stellar Death, 116 ADS

  • Supernova Remnants in the UWIFE and UWISH2 Surveys
    Lee, Y.-H., 2016, Supernova Remnants: An Odyssey in Space after Stellar Death, 141 ADS

  • A new supernova remnant candidate in the UWIFE [Fe II] line survey
    Kim, Y., & Koo, B.-C., 2016, Supernova Remnants: An Odyssey in Space after Stellar Death, 22 ADS

  • Resolving shocked and UV excited components of H2 emission in planetary nebulae with high-resolution near-infrared spectroscopy
    Kaplan, K., Dinerstein, H.L., & Jaffe, D.T., 2016, American Astronomical Society Meeting Abstracts, 228, 219.06 ADS

  • Propertires of K/M Dwarf Eclipsing Binaries
    Riddle, A., & Kraus, A.L., 2016, American Astronomical Society Meeting Abstracts, 228, 345.16 ADS

  • Observing Infrared Emission Lines of Neutron-Capture Species in Planetary Nebulae: New Detections with IGRINS
    Dinerstein, H.L., Sterling, N.C., Kaplan, K.F., et al., 2015, IAU General Assembly, 22, 55057 ADS

  • On the Complexity of H2 Excitation Near Hot Stars: High Spectral and Spatial Resolution Observations of Compact Planetary Nebulae with IGRINS
    Dinerstein, H.L., Kaplan, K.F., & Jaffe, D.T., 2015, IAU General Assembly, 22, 55756 ADS

  • IGRINS observations toward Class I disk sources
    Lee, S., Lee, J.-E., Park, S., et al., 2015, IAU General Assembly, 22, 55986 ADS

  • High-Resolution Near Infrared Observations of Red Horizontal Branch Stars in the Galactic Field
    Afsar, M., Bozkurt, Z., Bocek Topcu, G., et al., 2015, EAS Publications Series, 71, 347 ADS

  • Pluto's atmosphere in 2015 from high-resolution spectroscopy
    Roe, H.G., Cook, J.C., Mace, G.N., et al., 2015, AAS Division for Planetary Sciences Meeting Abstracts, 47, 210.18 ADS

  • An Infrared High Resolution Spectroscopic Abundance Study of the Metal-Poor Giant HD 122563
    Sneden, C., Afsar, M., Jaffe, D.T., et al., 2015, American Astronomical Society Meeting Abstracts, 225, 342.11 ADS

  • Resolving the Discrepancy of Low-Mass Stars with IGRINS
    Riddle, A. & Kraus, A.L., 2015, American Astronomical Society Meeting Abstracts, 225, 138.14 ADS

  • Measuring Fundamental Stellar Properties with Theremin
    Deen, C., Mace, G.N., Juarez, A., et al., 2015, American Astronomical Society Meeting Abstracts, 225, 138.12 ADS

  • Detection of Exoplanet Thermal Emission with Future High-Resolution Spectrometers
    Gullikson, K., Endl, M., & Jaffe, D., 2012, American Astronomical Society Meeting Abstracts, 219, 432.08 ADS

  • The Calibration System for IGRINS, a High Resolution Near-IR Spectrograph
    Oh, H., Pak, S., Yuk, I., et al., 2010, American Astronomical Society Meeting Abstracts, 216, 415.10 ADS

Additional Publications:

  • Exposure time calculator for Immersion Grating Infrared Spectrograph: IGRINS
    Le, H.A.N., Pak, S., Jaffe, D.T., Kaplan, K., Lee, J.-J., Im, M., & Seifahrt, A., 2015, AdSpR, 55, 2509 ADS

  • IGRINS K-band High-Resolution Spectroscopy of the FU Ori Type Object 2MASS J06593158-0405277
    Pyo, T.-S., Oh, H., Yuk, I.-S., Kim, H., & Davis, C.J., 2015, ATel, 6901, 1 ADS

  • Detector Mount Design for IGRINS
    Oh, J.S., Park, C., Cha, S.-M., Yuk, I.-S., Park, K., Kim, K.-M., Chun, M.-Y., Ko, K., Oh, H., Jeong, U., Nah, J., Lee, H., & Jaffe, D.T., 2014, JASS, 31, 177 ADS

  • Comprehensive data reduction package for the Immersion GRating INfrared Spectrograph: IGRINS
    Sim, C.K., Le, H.A.N., Pak, S., Lee, H.-I., Kang, W., Chun, M.-Y., Jeong, U., Yuk, I.-S., Kim, K.-M., Park, C., Pavel, M.D., & Jaffe, D.T., 2014, AdSpR, 53, 1647 ADS

  • Precise Prediction of Optical Performance for Near Infrared Instrument Using Adaptive Fitting Line
    Ko, K., Han, J.-Y., Nah, J., Oh, H., Yuk, I.-S., Park, C., Chun, M.-Y., Oh, J.S., Kim, K.-M., Lee, H., Jeong, U., & Jaffe, D.T., 2013, JASS, 30, 307 ADS

  • Future Direct Spectroscopic Detection of Hot Jupiters with IGRINS
    Gullikson, K., & Endl, M., 2013, PASP, 125, 924 ADS

  • IGRINS Mirror Mount Design for Three Off-Axis Collimators and One Slit-Viewer Fold Mirror
    Rukdee, S., Park, C., Kim, K.-M., Lee, S.-H., Chun, M.-Y., Yuk, I.-S., Oh, H.-Y., Jung, H.-K., Lee, C.-U., Lee, H.-S., Rafal, M.D., Barnes, S., & Jaffe, D.T., 2012, JASS, 29, 233 ADS

19 April 2015
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