Date

Speaker

Title

Aug 27

No talk scheduled.

Sept 3

Steve Finkelstein

University of Texas at Austin

Organizational Meeting.

Sept 10

Rebecca Larson

University of Texas at Austin

"Using Herschel Far-Infrared Photometry to Constrain Star Formation Rates in CLASH Cluster Galaxies"

Sept 17

Sabrina Cales

Yale University

(host: Shardha Jogee) Title: TBA.

Sept 24

Xingxing Huang

Johns Hopkins University

"Extreme Strong Emission Line Galaxies at z ~ 1-2 and the Implications for High Redshift Galaxies" (host: Steve Finkelstein.)

With the new installed instrument WFC3 in 2009, the HST extended the wavelength coverage to 1.6 um and detected a group of interesting galaxies called Extreme Strong Emission Line Galaxies (EELGs) at redshift range 1-2. In the spectra of these galaxies, some emission lines ([O III] 5007 Angstroms or Ha 6564 Angstroms) can reach equivalent widths (EWs) above 500 Angstroms, thus the broad band photometry could be significantly contaminated. I will present our method to select EELGs from the HST 16 bands observation of 25 cluster fields (the HST survey called CLASH). EELGs with the equivalent widths (EWs) as high as 3000 Angstroms are found in our sample.We find they could be more abundant than that we thought. I will discuss the contamination of z>9 galaxy selection due to the existence of such strong emission line galaxies at z~2. What is more, such galaxies also have similar properties as high redshift galaxies. I will show the unique properties of the EELGs. Such EELGs will be more common in the future JWST observations.

close

Oct 1

Keely Finkelstein

University of Texas at Austin

"Probing the Physical Properties of High-Redshift Lyman-Alpha Emitters with Spitzer"

abstract

Oct 8

Speaker: TBD

Affiliation: TBD

No talk scheduled.

Oct 15

Greg Zeimann

University of Texas at Austin

"Why Dust Attenuation at High Redshift in Truly a NUISANCE Parameter."

abstract

Oct 22

Jimmy

UT Austin: Physics Dept.

"The Fundamental Metallicity Relation with Dwarf Irregular Galaxies"

abstract

Oct 29

(1) Matt Stevans
(2) Akim Yildirim

(1)University of Texas at Austin
(2)University of Heidelberg, Germany

(1) "The Hobby Eberly Telescope Dark Energy Experiment (HETDEX) and Galaxy Evolution"

(2) "Compact Elliptical Galaxies in the Local Universe"

Nov 5

Bev Wills

University of Texas at Austin

"Magnetic Field Alignment in Relativistic Jets of Active Galactic Nuclei"

Nov 12

John Kormendy

University of Texas at Austin

"Fritz Zwicky: Personal Recollections"

Nov 19

Andrew Leung

University of Texas at Austin

"Bayesian Redshift Classification of Emission-line Galaxies in HETDEX"

Nov 26

Thanksgiving Day Holiday. UT Closed. No talk scheduled.

Dec 3

Nancy Kawinwanichakij

Texas A&M University

"What do Satellite Galaxies tell us about their Dark Matter Halos and Galaxy Quenching?"

abstract