Mapping the Distant and Metal-Poor Milky Way with SDSS-V
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866910101737046016 |
|---|---|
| author | Chandra, Vedant Cargile, Phillip A. Ji, Alexander P. Conroy, Charlie Rix, Hans-Walter Cunningham, Emily Dias, Bruno Laporte, Chervin Cerny, William Limberg, Guilherme Bandyopadhyay, Avrajit Bonaca, Ana Casey, Andrew R. Donor, John Fernandez-Trincado, Jose G. Frinchaboy, Peter M. Gupta, Pramod Hawkins, Keith Johnson, Jennifer A. Kollmeier, Juna A. Lucey, Madeline Medan, Ilija Meszaros, Szabolcs Morrison, Sean Sanchez-Gallego, Jose Saydjari, Andrew K. Sayres, Conor Schlaufman, Kevin C. Stassun, Keivan G. Tayar, Jamie Way, Zachary |
| author_facet | Chandra, Vedant Cargile, Phillip A. Ji, Alexander P. Conroy, Charlie Rix, Hans-Walter Cunningham, Emily Dias, Bruno Laporte, Chervin Cerny, William Limberg, Guilherme Bandyopadhyay, Avrajit Bonaca, Ana Casey, Andrew R. Donor, John Fernandez-Trincado, Jose G. Frinchaboy, Peter M. Gupta, Pramod Hawkins, Keith Johnson, Jennifer A. Kollmeier, Juna A. Lucey, Madeline Medan, Ilija Meszaros, Szabolcs Morrison, Sean Sanchez-Gallego, Jose Saydjari, Andrew K. Sayres, Conor Schlaufman, Kevin C. Stassun, Keivan G. Tayar, Jamie Way, Zachary |
| contents | The fifth-generation Sloan Digital Sky Survey (SDSS-V) is conducting the first all-sky low-resolution spectroscopic survey of the Milky Way's stellar halo. We describe the stellar parameter pipeline for the SDSS-V halo survey, which simultaneously models spectra, broadband photometry, and parallaxes to derive stellar parameters, metallicities, alpha abundances, and distances. The resulting BOSS-MINESweeper catalog is validated across a wide range of stellar parameters and metallicities using star clusters and a comparison to high-resolution spectroscopic surveys. We demonstrate several scientific capabilities of this dataset: identifying the most chemically peculiar stars in our Galaxy, discovering and mapping distant halo substructures, and measuring the all--sky dynamics of the Milky Way on the largest scales. The BOSS-MINESweeper catalog for SDSS DR19 is publicly available and will be updated for future data releases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_00978 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Mapping the Distant and Metal-Poor Milky Way with SDSS-V Chandra, Vedant Cargile, Phillip A. Ji, Alexander P. Conroy, Charlie Rix, Hans-Walter Cunningham, Emily Dias, Bruno Laporte, Chervin Cerny, William Limberg, Guilherme Bandyopadhyay, Avrajit Bonaca, Ana Casey, Andrew R. Donor, John Fernandez-Trincado, Jose G. Frinchaboy, Peter M. Gupta, Pramod Hawkins, Keith Johnson, Jennifer A. Kollmeier, Juna A. Lucey, Madeline Medan, Ilija Meszaros, Szabolcs Morrison, Sean Sanchez-Gallego, Jose Saydjari, Andrew K. Sayres, Conor Schlaufman, Kevin C. Stassun, Keivan G. Tayar, Jamie Way, Zachary Astrophysics of Galaxies Solar and Stellar Astrophysics The fifth-generation Sloan Digital Sky Survey (SDSS-V) is conducting the first all-sky low-resolution spectroscopic survey of the Milky Way's stellar halo. We describe the stellar parameter pipeline for the SDSS-V halo survey, which simultaneously models spectra, broadband photometry, and parallaxes to derive stellar parameters, metallicities, alpha abundances, and distances. The resulting BOSS-MINESweeper catalog is validated across a wide range of stellar parameters and metallicities using star clusters and a comparison to high-resolution spectroscopic surveys. We demonstrate several scientific capabilities of this dataset: identifying the most chemically peculiar stars in our Galaxy, discovering and mapping distant halo substructures, and measuring the all--sky dynamics of the Milky Way on the largest scales. The BOSS-MINESweeper catalog for SDSS DR19 is publicly available and will be updated for future data releases. |
| title | Mapping the Distant and Metal-Poor Milky Way with SDSS-V |
| topic | Astrophysics of Galaxies Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2508.00978 |