Probing the Canis Major stellar over-density as due to the Galactic warp
@article{Momany2004ProbingTC, title={Probing the Canis Major stellar over-density as due to the Galactic warp}, author={Yazan Momany and Simone Zaggia and Piercarlo Bonifacio and Giampaolo Piotto and Francesca de Angeli and Luigi R. Bedin and G Astr and Universit̀a di Padova and Inaf - Oss. Astr. Trieste}, journal={Astronomy and Astrophysics}, year={2004}, volume={421} }
Proper-motion, star counts and photometric catalog simulations are used to explain the detected stellar over-density in the region of Canis Major, claimed to be the core of a disrupted dwarf galaxy (CMa, Martin et al. [CITE], MNRAS, 348, 12; Bellazzini et al. [CITE], [arXiv:astro-ph/0311119]), as due to the Galactic warp and flare in the external disk. We compare the kinematics of CMa M-giant selected sample with surrounding Galactic disk stars in the UCAC2 catalog and find no peculiar proper…
76 Citations
Why the Canis Major overdensity is not due to the Warp: analysis of its radial profile and velocities
- Physics
- 2004
In response to criticism by Momany et al. (2004), that the recently-identified Canis Major (CMa) overdensity could be simply explained by the Galactic warp, we present proof of the existence of a…
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- 2005
The recently discovered stellar system in Canis Major is analysed using He-burning red clump stars as tracers. Canis Major turns out to be the strongest and the most spatially confined overdensity of…
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- Physics
- 2009
Our multi-epoch survey of ~20 deg2 of the Canis Major (CMa) overdensity has detected only 10 RR Lyrae stars (RRLS). We show that this number is consistent with the number expected from the Galactic…
UVES observations of the Canis Major overdensity
- Physics
- 2005
We present the first detailed chemical abundances for three giant stars which are candidate members of the Canis Major overdensity, obtained by using FLAMES-UVES at VLT. The stars, in the background…
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- Physics
- 2006
Aims. In this paper we derive the structure of the Galactic stellar warp and flare. Methods. We use 2MASS red clump and red giant stars, selected at mean and fixed heliocentric distances of…
Absolute Proper Motion of the Canis Major Dwarf Galaxy Candidate
- Physics
- 2005
We have measured the absolute proper motion of the candidate Canis Major dwarf galaxy (CMa), at (l, b) =(240°, -8°). Likely main-sequence stars in CMa have been selected from a region in the…
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- Physics
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Context. There is a continuing debate as to the form of the outer disc of the Milky Way galaxy, which has important implications for understanding the Galaxy’s formation. Stars are known to exist at…
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- Physics, Geology
- 2007
We analyze the stellar populations of the Canis Major stellar overdensity using quantitative color-magnitude diagram (CMD) fitting techniques. The analysis is based on photometry obtained with the…
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