322 citations · 3k across the 23 of their papers we have counts for
23 papers
The TYPHOON stellar population synthesis survey: I. The young stellar population of the Great Barred Spiral NGC 1365
Eva Sextl, Rolf-Peter Kudritzki, Andreas Burkert +6
We analyze TYPHOON long slit absorption line spectra of the starburst barred spiral galaxy NGC 1365 obtained with the Progressive Integral Step Method covering an area of 15 square…
Mass Metallicity Relationship of SDSS Star Forming Galaxies: Population Synthesis Analysis and Effects of Star Burst Length, Extinction Law, Initial Mass Function and Star Formation Rate
Eva Sextl, Rolf-Peter Kudritzki, H. Jabran Zahid +1
We investigate the mass-metallicity relationship of star forming galaxies by analysing the absorption line spectra of 200,000 galaxies in the Sloan Digital Sky Survey. The ga…
The Fine Line Between Normal and Starburst Galaxies
Nicholas Lee, Kartik Sheth, Kimberly S. Scott +10
Recent literature suggests that there are two modes through which galaxies grow their stellar mass - a normal mode characterized by quasi-steady star formation, and a highly effici…
The FMOS-COSMOS survey of star-forming galaxies at z~1.6. IV: Excitation state and chemical enrichment of the interstellar medium
D. Kashino, J. D. Silverman, D. Sanders +22
We investigate the physical conditions of ionized gas in high-z star-forming galaxies using diagnostic diagrams based on the rest-frame optical emission lines. The sample consists…
Rest-frame Optical Emission Lines in Far-Infrared Selected Galaxies at z<1.7 from the FMOS-COSMOS Survey
Jeyhan S. Kartaltepe, D. B. Sanders, J. D. Silverman +15
We have used FMOS on Subaru to obtain near-infrared spectroscopy of 123 far-infrared selected galaxies in COSMOS and obtain the key rest-frame optical emission lines. This is the l…
The chemical evolution of local star forming galaxies: Radial profiles of ISM metallicity, gas mass, and stellar mass and constraints on galactic accretion and winds
Rolf-Peter Kudritzki, I-Ting Ho, Andreas Schruba +4
The radially averaged metallicity distribution of the ISM and the young stellar population of a sample of 20 disk galaxies is investigated by means of an analytical chemical evolut…
Metallicity gradients in local field star-forming galaxies: Insights on inflows, outflows, and the coevolution of gas, stars and metals
I-Ting Ho, Rolf-Peter Kudritzki, Lisa J. Kewley +4
We present metallicity gradients in 49 local field star-forming galaxies. We derive gas-phase oxygen abundances using two widely adopted metallicity calibrations based on the [OIII…
A Turnover in the Galaxy Main Sequence of Star Formation at for Redshifts
Nicholas Lee, D. B. Sanders, Caitlin M. Casey +14
The relationship between galaxy star formation rates (SFR) and stellar masses () is re-examined using a mass-selected sample of 62,000 star-forming galaxies at $z \le…
Ages of Type Ia Supernovae Over Cosmic Time
Michael J. Childress, Christian Wolf, H. Jabran Zahid
We derive empirical models for galaxy mass assembly histories, and convolve these with theoretical delay time distribution (DTD) models for Type Ia supernovae (SNe Ia) to derive th…
The Universal Relation of Galactic Chemical Evolution: The Origin of the Mass-Metallicity Relation
Jabran Zahid, Gabriel Dima, Rolf Kudritzki +5
We examine the mass-metallicity relation for . The mass-metallicity relation follows a steep slope with a turnover or `knee' at stellar masses around $10^{10} M_\odo…
The FMOS-Cosmos Survey of Star-Forming Galaxies at z~1.6 II. The Mass-Metallicity Relation and the Dependence on Star Formation Rate and Dust Extinction
H. J. Zahid, D. Kashino, J. D. Silverman +28
We investigate the relationships between stellar mass, gas-phase oxygen abundance (metallicity), star formation rate, and dust content of star-forming galaxies at z1.6 using…
The FMOS-COSMOS survey of star-forming galaxies at z ~ 1.6. I. Hα-based star formation rates and dust extinction
D. Kashino, J. D. Silverman, G. Rodighiero +26
We present the first results from a near-IR spectroscopic survey of the COSMOS field, using the Fiber Multi-Object Spectrograph on the Subaru telescope, designed to characterize th…
Empirical Constraints for the Magnitude and Composition of Galactic Winds
H. Jabran Zahid, Paul Torrey, Mark Vogelsberger +3
Galactic winds are a key physical mechanism for understanding galaxy formation and evolution, yet empirical and theoretical constraints for the character of winds are limited and d…
The Slow Flow Model of Dust Efflux in Local Star-Forming Galaxies
H. Jabran Zahid, Paul Torrey, Rolf Kudritzki +3
We develop a dust efflux model of radiation pressure acting on dust grains which successfully reproduces the relation between stellar mass, dust opacity and star formation rate obs…
The Chemical Evolution of Star-Forming Galaxies Over the Last 11 Billion Years
H. Jabran Zahid, Margaret Geller, Lisa Kewley +3
We calculate the stellar mass-metallicity relation at five epochs ranging to z~2.3. We quantify evolution in the shape of the mass-metallicity relation as a function of redshift; t…
The Observed Relation between Stellar Mass, Dust Extinction and Star Formation Rate in Local Galaxies
H. Jabran Zahid, Robert M. Yates, Lisa J. Kewley +1
In this study we investigate the relation between stellar mass, dust extinction and star formation rate (SFR) using ~150,000 star-forming galaxies from the SDSS DR7. We show that t…
A Census of Oxygen in Star-Forming Galaxies: An Empirical Model Linking Metallicities, Star Formation Rates and Outflows
H. Jabran Zahid, Gabriel I. Dima, Lisa J. Kewley +2
In this contribution we present the first census of oxygen in star-forming galaxies in the local universe. We examine three samples of galaxies with metallicities and star formatio…
The Metallicities of Low Stellar Mass Galaxies and the Scatter in the Mass-Metallicity Relation
H. J. Zahid, F. Bresolin, L. J. Kewley +2
In this investigation we quantify the metallicities of low mass galaxies by constructing the most comprehensive census to date. We use galaxies from the SDSS and DEEP2 survey and e…
Eliminating Error in the Chemical Abundance Scale for Extragalactic HII Regions
Angel R. Lopez-Sanchez, M. A. Dopita, L. J. Kewley +3
In an attempt to remove the systematic errors which have plagued the calibration of the HII region abundance sequence, we have theoretically modeled the extragalactic HII region se…
Reexamination of the Radial Abundance Gradient Break in NGC 3359
H. Jabran Zahid, Fabio Bresolin
In this contribution, we reexamine the radial oxygen abundance gradient in the strongly barred spiral galaxy NGC 3359, for which, using an imaging spectrophotometric technique, Mar…
Metallicity Gradients and Gas Flows in Galaxy Pairs
Lisa J. Kewley, David Rupke, H. Jabran Zahid +2
We present the first systematic investigation into the metallicity gradients in galaxy close pairs. We determine the metallicity gradients for 8 galaxies in close pairs using HII r…
The Mass-Metallicity and Luminosity-Metallicity Relation from DEEP2 at z ~ 0.8
H. J. Zahid, L. J. Kewley, F. Bresolin
We present the mass-metallicity (MZ) and luminosity-metallicity (LZ) relations at z ~ 0.8 from ~1350 galaxies in the Deep Extragalactic Evolutionary Probe 2 (DEEP2) survey. We dete…
The Host Galaxies of Gamma-Ray Bursts II: A Mass-Metallicity Relation for Long-Duration Gamma-Ray Burst Host Galaxies
Emily M. Levesque, Lisa J. Kewley, Edo Berger +1
We present a statistically robust mass-metallicity (M-Z) relation for long-duration gamma-ray burst (LGRB) host galaxies at z < 1. By comparing the LGRB host M-Z relation to sample…