Infrared variable stars in the compact elliptical galaxy M32. Issue 1 (5th April 2021)
- Record Type:
- Journal Article
- Title:
- Infrared variable stars in the compact elliptical galaxy M32. Issue 1 (5th April 2021)
- Main Title:
- Infrared variable stars in the compact elliptical galaxy M32
- Authors:
- Jones, O C
Nally, C
Sharp, M J
McDonald, I
Boyer, M L
Meixner, M
Kemper, F
Ferguson, A M N
Goldman, S R
Rich, R M - Abstract:
- ABSTRACT: Variable stars in the compact elliptical galaxy M32 are identified, using three epochs of photometry from the Spitzer Space Telescope at 3.6 and 4.5 μ m, separated by 32 to 381 d. We present a high-fidelity catalogue of sources detected in multiple epochs at both 3.6 and 4.5 μ m, which we analysed for stellar variability using a joint probability error-weighted flux difference. Of these, 83 stars are identified as candidate large-amplitude, long-period variables, with 28 considered high-confidence variables. The majority of the variable stars are classified as asymptotic giant branch star candidates using colour-magnitude diagrams. We find no evidence supporting a younger, infrared-bright stellar population in our M32 field.
- Is Part Of:
- Monthly notices of the Royal Astronomical Society. Volume 504:Issue 1(2021)
- Journal:
- Monthly notices of the Royal Astronomical Society
- Issue:
- Volume 504:Issue 1(2021)
- Issue Display:
- Volume 504, Issue 1 (2021)
- Year:
- 2021
- Volume:
- 504
- Issue:
- 1
- Issue Sort Value:
- 2021-0504-0001-0000
- Page Start:
- 565
- Page End:
- 575
- Publication Date:
- 2021-04-05
- Subjects:
- stars: late-type -- galaxies: individual (M32) -- galaxies: stellar content -- infrared: galaxies -- infrared: stars; stars: AGB and post-AGB
Astronomy -- Periodicals
Periodicals
520.5 - Journal URLs:
- http://mnras.oxfordjournals.org/ ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2966 ↗
http://www.blackwell-synergy.com/issuelist.asp?journal=mnr ↗
http://www.blackwell-synergy.com/loi/mnr ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/mnras/stab923 ↗
- Languages:
- English
- ISSNs:
- 0035-8711
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5943.000000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 25340.xml