Find my new website at: https://stevans.github.io/

I'm a fourth year graduate student at the University of Texas studying galaxy evolution under the guidance of Prof. Steven Finkelstein. Check out the tabs at the top of the page to find out more about me, read about my research and publications, view my research posters, or download my Curriculum Vitae.

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For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.

Carl Sagan

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About Me

Since I'm originally from McMurray, PA, a suburb of Pittsburgh, PA, I have to start by saying, "Go Steelers!" In Pennsylvania I graduated from Peters Township High School in 2008, and my favorite classes were AP Biology and AP Physics. I ran varsity cross country for two years and helped my varsity baseball team win the 2008 Western Pennsylvania Interscholastic Athletic League (WPIAL) Championship.

Since moving to Colorado I have not played on many organized sports teams, but I enjoy staying physically active by shooting basketball with friends or blowing off steam at the gym. In fall 2012 I joined the Denver Team Handball club team in pursuit of olympic glory. (Of course, I'm alreaday an olympian in my dreams.) On the intellectual side of things, I love staying up-to-date on current events and the advancement of science and astronomy in popular culture.

My idols are Carl Sagan and Neil deGrasse Tyson because of their ability to effortlessly communicate the awesomeness of science and outer space to anyone who will listen. They are truly inspiring! I cannot wait for the rebooted "Cosmos: A Space-Time Odyssey" hosted by Dr. Tyson that will air on Fox in 2014!

Below is a picture of my lovely family on graduation day in May 2012!

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Contact Me

Find my email address and office phone number at: My UT Directory Page

research

As an undergraduate I compiled a composite spectrum of active galactic nuclei (AGN) in the extreme-ultraviolet (EUV) using data from the Cosmic Origins Spectrograph (COS).

With composite spectra and about 150 individual spectra I am constraining the EUV emission from AGN to study how the ionizing continuum of AGN affects the broad emission features, which originate in the aptly named Broad Emission-Line Region (BELR).

I am also contributing to the COS survey of the local intergalactic medium (IGM) and the "missing baryon problem."

I have previously worked on studying high velocity clouds (HVCs) and their interaction with the sgalactic halo.



Publications

Shull, J., M., Stevans, M., L., & Danforth, C., W., 2012, HST-COS Observations of AGN. I. Ultraviolet Emission Lines and Rest-Frame Ionizing Continua, ApJ, 752, 162S

Stevans, M., L., Brittain, S., D., 2011, CO Emission in the Inner Disk Around Young Intermediate-mass Stars, Journal of the Southeastern Association for Research in Astronomy, JSARA, 6, 36

Shull, J., M., Stevans, M., L., Danforth, C., W., Penton, S., V., Lockman, F., J., & Arav, N., 2011, HST/COS Observations of Galactic High-velocity Clouds: Four Active Galactic Nucleus Sight Lines through Complex C, ApJ, 739, 105S

Posters

2013 – AGN Extreme-Ultraviolet Spectral Properties and Composite Spectra from COS (PDF [3.5MB])

poster

2012 – The First HST/COS Extreme-Ultraviolet AGN Composite Spectrum (PDF [16.6MB])

2011 – Hubble/Cos Observations of AGN Ionizing Continua (PDF [1.7MB])

2010 – Characterizing AGN Continua in the Far-Ultraviolet (PDF [1.5MB])

Presentations

2011 – Heating in Proto-Planetary Disks Around Intermediate-Mass Young Stars (PDF [2.1MB])

Download a PDF version of my Curriculum Vitae here

EDUCATION

University of Colorado at Boulder
B.A. in Astrophysics, May 2012

RESEARCH INTERESTS

  • Extragalactic Astrophysics
  • Ultraviolet Spectroscopy
  • Active Galactic Nuclei (AGN)
  • Intergalactic Medium (IGM)
  • High Velocity Clouds (HVCs)

AWARDS AND HONORS

  • 2008-2009 – Kittredge Honors Program University of Colorado
  • 2008 – Chancellor’s Achievement Scholarship University of Colorado
  • 2008 – Advance Placement Scholar with Honors

RESEARCH EXPERIENCE

  • PROFESSIONAL RESEARCH ASSISTANT
    University of Colorado, Boulder, CO May 2012 – Aug 2013
    Advisors: Professor J. Michael Shull and Dr. Charles W. Danforth
  • UNDERGRADUATE RESEARCH ASSISTANT
    University of Colorado, Boulder, CO May 2009 – May 2012
    Advisors: Professor J. Michael Shull and Dr. Charles W. Danforth
  • SUMMER REU RESEARCH ASSISTANT
    Clemson University, Clemson, SC Summer 2011
    Advisor: Professor Sean D. Brittain
  • SCIENCE TEAM MEMBER
    University of Colorado, Boulder, CO January 2009 – May 2009
    Colorado Space Grant Consortium
    Supervisor: Brian Sanders

Publications

Shull, J., M., Stevans, M., L., & Danforth, C., W., 2012, HST-COS Observations of AGN. I. Ultraviolet Emission Lines and Rest-Frame Ionizing Continua, ApJ, 752, 162S

Stevans, M., L., Brittain, S., D., 2011, CO Emission in the Inner Disk Around Young Intermediate-mass Stars, Journal of the Southeastern Association for Research in Astronomy, JSARA, 6, 36

Shull, J., M., Stevans, M., L., Danforth, C., W., Penton, S., V., Lockman, F., J., & Arav, N., 2011, HST/COS Observations of Galactic High-velocity Clouds: Four Active Galactic Nucleus Sight Lines through Complex C, ApJ, 739, 105S