Star Formation in AEGIS Field Galaxies since z = 1.1: The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-forming Galaxies
We analyze star formation (SF) as a function of stellar mass (M*) and redshift z in the All-Wavelength Extended Groth Strip International Survey. For 2905 field galaxies, complete to 1010(1010.8) M☉…
THE UNIVERSAL STELLAR MASS–STELLAR METALLICITY RELATION FOR DWARF GALAXIES
- E. Kirby, J. Cohen, P. Guhathakurta, Lucy Cheng, J. Bullock, A. Gallazzi
- Physics, Geology
- 2 October 2013
We present spectroscopic metallicities of individual stars in seven gas-rich dwarf irregular galaxies (dIrrs), and we show that dIrrs obey the same mass–metallicity relation as the dwarf spheroidal…
Science Objectives and Early Results of the DEEP2 Redshift Survey
The DEIMOS spectrograph has now been installed on the Keck-II telescope and commissioning is nearly complete. The DEEP2 Redshift Survey, which will take approximately 120 nights at the Keck…
MULTI-ELEMENT ABUNDANCE MEASUREMENTS FROM MEDIUM-RESOLUTION SPECTRA. III. METALLICITY DISTRIBUTIONS OF MILKY WAY DWARF SATELLITE GALAXIES
- E. Kirby, G. Lanfranchi, J. Simon, J. Cohen, P. Guhathakurta
- Physics
- 22 November 2010
We present metallicity distribution functions (MDFs) for the central regions of eight dwarf satellite galaxies of the Milky Way: Fornax, Leo I and II, Sculptor, Sextans, Draco, Canes Venatici I, and…
Distances to nearby galaxies in Sculptor
- I. Karachentsev, E. Grebel, P. Seitzer
- Physics
- 4 February 2003
We present an analysis of Hubble Space Telescope/WFPC2 images of nine nearby galaxies in Sculptor. We derive their distances from the luminosity of the tip of the red giant branch stars with a…
Galaxy Luminosity Functions to z~1 from DEEP2 and COMBO-17: Implications for Red Galaxy Formation
- S. Faber, C. Willmer, R. Yan
- Physics
- 2 June 2005
The DEEP2 and COMBO-17 surveys are compared to study luminosity functions of red and blue galaxies to z ~ 1. The two surveys have different methods and sensitivities, but nevertheless results agree.…
The Evolution of Galaxy Mergers and Morphology at z < 1.2 in the Extended Groth Strip
We present the quantitative rest-frame B morphological evolution and galaxy merger fraction at 0.2 < z < 1.2 as observed by the All-Wavelength Extended Groth Strip International Survey (AEGIS). We…
THE DEEP2 GALAXY REDSHIFT SURVEY: DESIGN, OBSERVATIONS, DATA REDUCTION, AND REDSHIFTS
- J. Newman, M. Cooper, R. Schiavon
- Physics
- 14 March 2012
We describe the design and data analysis of the DEEP2 Galaxy Redshift Survey, the densest and largest high-precision redshift survey of galaxies at z ∼ 1 completed to date. The survey was designed to…
Extragalactic background light inferred from AEGIS galaxy-SED-type fractions
- A. Domínguez, J. Primack, M. Lozano
- Physics
- 8 July 2010
Theextragalacticbackgroundlight(EBL)isoffundamentalimportancebothforunderstanding the entire process of galaxy evolution and for"-ray astronomy, but the overall spectrum of the EBL between 0.1 and…
Uncovering Extremely Metal-Poor Stars in the Milky Way’s Ultrafaint Dwarf Spheroidal Satellite Galaxies
- E. Kirby, J. Simon, M. Geha, P. Guhathakurta, A. Frebel
- Physics
- 14 July 2008
We present new metallicity measurements for 298 individual red giant branch stars in eight of the least luminous dwarf spheroidal galaxies (dSphs) in the Milky Way (MW) system. Our technique is based…
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