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19912026
Showing 2011 · astro-ph.GAShow all

6 papers · 2 filters

astro-ph.GA2011★ 75 cited

Milky Way Tomography IV: Dissecting Dust

Michael Berry, Željko Ivezić, Branimir Sesar +28

We use SDSS photometry of 73 million stars to simultaneously obtain best-fit main-sequence stellar energy distribution (SED) and amount of dust extinction along the line of sight t…

astro-ph.GA2011★ 11 cited

On the Rarity of X-Ray Binaries with Naked Helium Donors

T. Linden, F. Valsecchi, V. Kalogera

The paucity of known High-Mass X-Ray Binaries (HMXB) with naked He donor stars (hereafter He star) in the Galaxy has been noted over the years as a surprising fact, given the signi…

astro-ph.GA2011★ 67 cited

The impact of baryon physics on the structure of high-redshift galaxies

Marcel Zemp, Oleg Y. Gnedin, Nickolay Y. Gnedin +1

We study the detailed structure of galaxies at redshifts z > 2 using cosmological simulations with improved modeling of the interstellar medium and star formation. The simulations…

astro-ph.GA2011★ 23 cited

The Dark Energy Survey: Prospects for Resolved Stellar Populations

B. M. Rossetto, B. X. Santiago, L. Girardi +17

Wide angle and deep surveys, regardless of their primary purpose, always sample a large number of stars in the Galaxy and in its satellite system. We here make a forecast of the ex…

astro-ph.GA2011★ 217 cited

Formation and Evolution of the Disk System of the Milky Way: [alpha/Fe] Ratios and Kinematics of the SEGUE G-Dwarf Sample

Young Sun Lee, Timothy C. Beers, Deokkeun An +10

We employ measurements of the [alpha/Fe] ratio derived from low-resolution (R~2000) spectra of 17,277 G-type dwarfs from the SEGUE survey to separate them into likely thin- and thi…

astro-ph.GA2011★ 177 cited

The Case for the Dual Halo of the Milky Way

Timothy C. Beers, Daniela Carollo, Zeljko Ivezic +11

Carollo et al. have recently resolved the stellar population of the Milky Way halo into at least two distinct components, an inner halo and an outer halo. This result has been crit…