2016MNRAS.459.1403R


Query : 2016MNRAS.459.1403R

2016MNRAS.459.1403R - Mon. Not. R. Astron. Soc., 459, 1403-1414 (2016/June-3)

The extended disc and halo of the Andromeda galaxy observed with Spitzer-IRAC.

RAFIEI RAVANDI M., BARMBY P., ASHBY M.L.N., LAINE S., DAVIDGE T.J., ZHANG J., BIANCHI L., BABUL A. and CHAPMAN S.C.

Abstract (from CDS):

We present the first results from an extended survey of the Andromeda galaxy (M31) using 41.1 h of observations by Spitzer-IRAC at 3.6 and 4.5 um. This survey extends previous observations to the outer disc and halo, covering total lengths of 44 and 66 along the minor and major axes, respectively. We have produced surface brightness profiles by combining the integrated light from background-corrected maps with stellar counts from a new catalogue of point sources. Using auxiliary catalogues, we have carried out a statistical analysis in colour-magnitude space to discriminate M31 objects from foreground Milky Way stars and background galaxies. The catalogue includes 426 529 sources, of which 66 per cent have been assigned probability values to identify M31 objects with magnitude depths of [3.6]=19.0±0.2, [4.5]=18.7±0.2. We discuss applications of our data for constraining the stellar mass and characterizing point sources in the outer radii.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: individual: M31 - galaxies: spiral - galaxies: stellar content - infrared: galaxies - infrared: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/459/1403): table5.dat catalog.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1304 1
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12559 1
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5811 1
4 NAME Local Group GrG ~ ~           ~ 8311 0

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