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Direct T metallicity calibration of R23 in strong line emitters
Tianxing Jiang, Sangeeta Malhotra, James E. Rhoads +1
The gas metallicity of galaxies is often estimated using strong emission lines such as the optical lines of [OIII] and [OII]. The most common measure is "R23", defined as ([OII]…
Correlation between SFR surface density and thermal pressure of ionized gas in local analogs of high-redshift galaxies
Tianxing Jiang, Sangeeta Malhotra, Huan Yang +1
We explore the relation between the star formation rate surface density (SFR) and the interstellar gas pressure for nearby compact starburst galaxies. The sample consists of 17…
Galaxy Structure, Stellar Populations, and Star Formation Quenching at 0.6 1.2
Keunho Kim, Sangeeta Malhotra, James E. Rhoads +3
We use both photometric and spectroscopic data from the {\it Hubble Space Telescope} to explore the relationships among 4000 Å break (D4000) strength, colors, stellar masses, and m…
Emission Line Metallicities From The Faint Infrared Grism Survey and VLT/MUSE
John Pharo, Sangeeta Malhotra, James Rhoads +20
We derive direct measurement gas-phase metallicities of for 14 low-mass Emission Line Galaxies (ELGs) at identified in the Faint Infrar…
The Dawn Light of Blueberry Galaxies: Spectroscopic and Photometric Studies of two Starburst Dwarf Galaxies
Yu Rong, Huan Yang, Hong-xin Zhang +8
A population of so-called "blueberry" starbursting dwarf galaxies with extremely blue colors, low-metallicities, and enormous ionization ratios, has recently been found by Yang et…
A Two-Dimensional Spectroscopic Study of Emission Line Galaxies in the Faint Infrared Grism Survey (FIGS) I: Detection Method and Catalog
Norbert Pirzkal, Barry Rothberg, Russell E. Ryan +31
We present the results from the application of a two-dimensional emission line detection method, EMission-line two-Dimensional (EM2D), to the near-infrared G102 grism observations…