arXiv Open Access 2020

The Second Data Release of the Survey of the MAgellanic Stellar History (SMASH)

David L. Nidever Knut Olsen Yumi Choi Tomas Ruiz-Lara Amy E. Miller +30 lainnya

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Abstrak

The Large and Small Magellanic Clouds (LMC and SMC) are the largest satellite galaxies of the Milky Way and close enough to allow for a detailed exploration of their structure and formation history. The Survey of the MAgellanic Stellar History (SMASH) is a community Dark Energy Camera (DECam) survey of the Magellanic Clouds using $\sim$50 nights to sample over $\sim$2400 deg$^2$ centered on the Clouds at $\sim$20% filling factor (but with contiguous coverage in the central regions) and to depths of $\sim$24th mag in $ugriz$. The primary goals of SMASH are to map out the extended stellar peripheries of the Clouds and uncover their complicated interaction and accretion history as well as to derive spatially-resolved star formation histories of the central regions and create a "movie" of their past star formation. Here we announce the second SMASH public data release (DR2), which contains all 197 fully-calibrated DECam fields including the main body fields in the central regions. The DR2 data are available through the Astro Data Lab hosted by the NSF's National Optical-Infrared Astronomy Research Laboratory. We highlight three science cases that make use of the SMASH DR2 data and will be published in the future: (1) preliminary star formation histories of the LMC; (2) the search for Magellanic star clusters using citizen scientists; and, (3) photometric metallicities of Magellanic Cloud stars using the DECam $u$-band.

Topik & Kata Kunci

astro-ph.GA

Penulis (35)

David L. Nidever

Knut Olsen

Yumi Choi

Tomas Ruiz-Lara

Amy E. Miller

L. Clifton Johnson

Cameron P. M. Bell

Robert D. Blum

Maria-Rosa L. Cioni

Carme Gallart

Steven R. Majewski

Nicolas F. Martin

Pol Massana

Antonela Monachesi

Noelia E. D. Noel

Joanna D. Sakowska

Roeland P. van der Marel

Alistair R. Walker

Dennis Zaritsky

Eric F. Bell

Blair C. Conn

Thomas J. L. de Boer

Robert A. Gruendl

Matteo Monelli

Ricardo R. Munoz

Abhijit Saha

A. Katherina Vivas

Edouard Bernard

Gurtina Besla

Julio A. Carballo-Bello

Antonio Dorta

David Martinez-Delgado

Alex Goater

Vadim Rusakov

Guy S. Stringfellow

Format Sitasi

APA MLA BibTeX

Nidever, D.L., Olsen, K., Choi, Y., Ruiz-Lara, T., Miller, A.E., Johnson, L.C. et al. (2020). The Second Data Release of the Survey of the MAgellanic Stellar History (SMASH). https://arxiv.org/abs/2011.13943

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Tahun Terbit: 2020
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓