The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.
Mapping the three-dimensional density of the Galactic bulge with VVV red clump stars
Open accessAbstract
The inner Milky Way is dominated by a boxy, triaxial bulge which is believed to have formed through disc instability processes. Despite its proximity, its large-scale properties are still not very well known, due to our position in the obscuring Galactic disc. Here, we make a measurement of the three-dimensional density distribution of the Galactic bulge using red clump giants identified in DR1 of the Vista Variables in the Via Lactea survey. Our density map covers the inner (2.2 × 1.4 × 1.1) kpc of the bulge/bar. Line-of-sight density distributions are estimated by deconvolving extinction- and completeness-corrected Ks-band magnitude distributions. In constructing our measurement, we assume that the three-dimensional bulge is eightfold mirror triaxially symmetric. In doing so, we measure the angle of the bar–bulge to the line of sight to be (27 ± 2)°, where the dominant error is systematic arising from the details of the deconvolution process. The resulting density distribution shows a highly elongated bar with projected axis ratios ≈(1 : 2.1) for isophotes reaching ∼2 kpc along the major axis. Along the bar axes the density falls off roughly exponentially, with axis ratios (10 : 6.3 : 2.6) and exponential scalelengths (0.70 : 0.44 : 0.18) kpc. From about 400 pc above the Galactic plane, the bulge density distribution displays a prominent X-structure. Overall, the density distribution of the Galactic bulge is characteristic for a strongly boxy/peanut-shaped bulge within a barred galaxy.
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Citations
Cites
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Bayesian-Based Iterative Method of Image Restoration*
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An iterative technique for the rectification of observed distributions
Lucy, L. B. (1974) · The Astronomical Journal · doi:10.1086/111605 · Cited by 3,866 · cited 1×
“(8) c© 2012 RAS, MNRAS 000, 1–14 Provided Lucy-Richardson deconvolution (Richardson 1972; Lucy 1974) converges, it converges to the maximum likelihood deconvolution for Poisson distributed errors, and is therefore an appropriate choice (Shepp & Vardi 1982).”
BackgroundA synthetic view on structure and evolution of the Milky Way
Robin, A. C., Reylé, C., Derrière, S., & Picaud, S. (2003) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20031117 · Cited by 2,039
MONITORING STELLAR ORBITS AROUND THE MASSIVE BLACK HOLE IN THE GALACTIC CENTER
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Understanding the kinematics of Galactic Centre gas
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“…giant stars have been used as standard candles to probe the Galactic bulge on numerous occasions, beginning with Stanek et al. (1994, 1997), who confirmed evidence from gas kinematics and NIR photometry (Binney et al. 1991; Weiland et al. 1994) that the Galactic bulge hosts a triaxial structure.”
MethodSelf-citation
Cited by
The Galaxy in Context: Structural, Kinematic, and Integrated Properties
Bland-Hawthorn, J., & Gerhard, O. (2016) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081915-023441 · Cited by 1,656
Self-citationPortail, M., Gerhard, O., Wegg, C., & Ness, M. (2017) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stw2819 · Cited by 378
Self-citationGirardi, L. (2016) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081915-023354 · Cited by 242
The gravitational force field of the Galaxy measured from the kinematics of RR Lyrae in Gaia
Wegg, C., Gerhard, O., & Bieth, M. (2019) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stz572 · Cited by 104
Self-citationThe life cycle of the Central Molecular Zone – I. Inflow, star formation, and winds
Armillotta, L., Krumholz, M. R., Di Teodoro, E. M., & McClure-Griffiths, N. M. (2019) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stz2880 · Cited by 85
Metadata
- Authors
- Wegg, C., & Gerhard, O.
- Venue
- Monthly Notices of the Royal Astronomical Society
- Publisher
- Oxford University Press (OUP)
- Published
- 2013-09-09
- Volume
- 435
- Issue
- 3
- Pages
- 1874-1887
- ISSN
- 0035-8711 (ISSN-L)
- 1365-2966
- OpenAlex
- W2067319481
- Cited by
- 401
- References
- 57
- FWCI
- 17.32
- Type
- journal article
- Language
- en
- Open access
- bronze
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