A point-source survey of M31 with the Spitzer space telescope

Jeremy Mould; Pauline Barmby; Karl Gordon; S. P. Willner; M. L.N. Ashby; R. D. Gehrz; Roberta Humphreys; Charles E. Woodward

doi:10.1086/591844

A point-source survey of M31 with the Spitzer space telescope

Jeremy Mould, Pauline Barmby, Karl Gordon, S. P. Willner, M. L.N. Ashby, R. D. Gehrz, Roberta Humphreys, Charles E. Woodward

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

We explore the stellar population of M31 in a Spitzer Space Telescope survey utilizing IRAC and MIPS observations. Red supergiants are the brightest objects seen in the infrared; they are a prominent evolutionary phase. Due to their circumstellar envelopes, many of these radiate the bulk of their luminosity at IRAC wavelengths and do not stand out in the near-infrared or optically. Going fainter, we see large numbers of luminous asymptotic giant branch stars (AGB), many of which are known long-period variables. Relative to M33 the AGB carbon star population of M31 appears sparse, but this needs to be spectroscopically confirmed.

Original language	English (US)
Pages (from-to)	230-241
Number of pages	12
Journal	Astrophysical Journal
Volume	687
Issue number	1
DOIs	https://doi.org/10.1086/591844
State	Published - Nov 1 2008

Keywords

Galaxies: individual (M31)
Galaxies: stellar content

Publisher link

10.1086/591844

Find It

Find It at U of M Libraries

Cite this

@article{4f40da6418bc417698e68a8eeb1f0c2a,

title = "A point-source survey of M31 with the Spitzer space telescope",

abstract = "We explore the stellar population of M31 in a Spitzer Space Telescope survey utilizing IRAC and MIPS observations. Red supergiants are the brightest objects seen in the infrared; they are a prominent evolutionary phase. Due to their circumstellar envelopes, many of these radiate the bulk of their luminosity at IRAC wavelengths and do not stand out in the near-infrared or optically. Going fainter, we see large numbers of luminous asymptotic giant branch stars (AGB), many of which are known long-period variables. Relative to M33 the AGB carbon star population of M31 appears sparse, but this needs to be spectroscopically confirmed.",

keywords = "Galaxies: individual (M31), Galaxies: stellar content",

author = "Jeremy Mould and Pauline Barmby and Karl Gordon and Willner, {S. P.} and Ashby, {M. L.N.} and Gehrz, {R. D.} and Roberta Humphreys and Woodward, {Charles E.}",

year = "2008",

month = nov,

day = "1",

doi = "10.1086/591844",

language = "English (US)",

volume = "687",

pages = "230--241",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

}

TY - JOUR

T1 - A point-source survey of M31 with the Spitzer space telescope

AU - Mould, Jeremy

AU - Barmby, Pauline

AU - Gordon, Karl

AU - Willner, S. P.

AU - Ashby, M. L.N.

AU - Gehrz, R. D.

AU - Humphreys, Roberta

AU - Woodward, Charles E.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - We explore the stellar population of M31 in a Spitzer Space Telescope survey utilizing IRAC and MIPS observations. Red supergiants are the brightest objects seen in the infrared; they are a prominent evolutionary phase. Due to their circumstellar envelopes, many of these radiate the bulk of their luminosity at IRAC wavelengths and do not stand out in the near-infrared or optically. Going fainter, we see large numbers of luminous asymptotic giant branch stars (AGB), many of which are known long-period variables. Relative to M33 the AGB carbon star population of M31 appears sparse, but this needs to be spectroscopically confirmed.

AB - We explore the stellar population of M31 in a Spitzer Space Telescope survey utilizing IRAC and MIPS observations. Red supergiants are the brightest objects seen in the infrared; they are a prominent evolutionary phase. Due to their circumstellar envelopes, many of these radiate the bulk of their luminosity at IRAC wavelengths and do not stand out in the near-infrared or optically. Going fainter, we see large numbers of luminous asymptotic giant branch stars (AGB), many of which are known long-period variables. Relative to M33 the AGB carbon star population of M31 appears sparse, but this needs to be spectroscopically confirmed.

KW - Galaxies: individual (M31)

KW - Galaxies: stellar content

UR - http://www.scopus.com/inward/record.url?scp=54949127949&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54949127949&partnerID=8YFLogxK

U2 - 10.1086/591844

DO - 10.1086/591844

M3 - Article

AN - SCOPUS:54949127949

SN - 0004-637X

VL - 687

SP - 230

EP - 241

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

ER -

A point-source survey of M31 with the Spitzer space telescope

Abstract

Keywords

Publisher link

Find It

Other files and links

Fingerprint

Cite this