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The Geometry of the Sagittarius Stream from Pan-STARRS1 3 π RR Lyrae
- Source :
- The Astrophysical Journal, The Astrophysical Journal, American Astronomical Society, 2017, 850 (1), pp.96. ⟨10.3847/1538-4357/aa960c⟩, NASA Astrophysics Data System, Astrophysical journal, 2017, Vol.850(1), pp.96 [Peer Reviewed Journal]
- Publication Year :
- 2017
- Publisher :
- HAL CCSD, 2017.
-
Abstract
- We present a comprehensive and precise description of the Sagittarius (Sgr) stellar stream's 3D geometry as traced by its old stellar population. This analysis draws on the sample of ${\sim}44,000$ RR Lyrae (RRab) stars from the Pan-STARRS1 (PS1) 3$\pi$ survey (Hernitschek et al. 2016,Sesar et al. 2017b), which is ${\sim}80\%$ complete and ${\sim}90\%$ pure within 80~kpc, and extends to ${\gtrsim} 120$~kpc with a distance precision of ${\sim} 3\%$. A projection of RR Lyrae stars within $|\tilde{B}|_{\odot}
- Subjects :
- Physics
Orbital plane
Stellar population
010308 nuclear & particles physics
media_common.quotation_subject
Astronomy and Astrophysics
Sagittarius Stream
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
RR Lyrae variable
01 natural sciences
Astrophysics - Astrophysics of Galaxies
Stars
Projection (mathematics)
Space and Planetary Science
Sky
[SDU]Sciences of the Universe [physics]
0103 physical sciences
Astrophysics::Solar and Stellar Astrophysics
Astrophysics::Earth and Planetary Astrophysics
010303 astronomy & astrophysics
Sagittarius
Astrophysics::Galaxy Astrophysics
ComputingMilieux_MISCELLANEOUS
media_common
Subjects
Details
- Language :
- English
- ISSN :
- 0004637X and 15384357
- Database :
- OpenAIRE
- Journal :
- The Astrophysical Journal, The Astrophysical Journal, American Astronomical Society, 2017, 850 (1), pp.96. ⟨10.3847/1538-4357/aa960c⟩, NASA Astrophysics Data System, Astrophysical journal, 2017, Vol.850(1), pp.96 [Peer Reviewed Journal]
- Accession number :
- edsair.doi.dedup.....ab8619b145f4c362a1576a3b32345d8f