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http://hdl.handle.net/2289/1499
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DC Field | Value | Language |
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dc.contributor.author | Trentham, Neil | - |
dc.contributor.author | Tully, Brent R. | - |
dc.contributor.author | Verheijen, M.A.W. | - |
dc.date.accessioned | 2006-11-04T11:08:54Z | - |
dc.date.available | 2006-11-04T11:08:54Z | - |
dc.date.issued | 2001-08 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2001, Vol.325, p1275-1280 | en |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/2289/1499 | - |
dc.description | Open Access | en |
dc.description.abstract | We present and discuss optical, near-infrared and H i measurements of the galaxy Markarian 1460 at a distance of 19 Mpc in the Ursa Major Cluster. This low-luminosity (MB=−14) galaxy is unusual because (i) it is blue (B−R=0.8) and has the spectrum of an H ii galaxy, (ii) it has a light profile that is smooth and well fitted by an r1/4 and not an exponential function at all radii larger than the seeing, and (iii) it has an observed central brightness of about μB=20 mag arcsec-2, intermediate between those of elliptical galaxies (on the bright μB side) and normal low-luminosity dwarf irregular (on the low μB side) galaxies. No other known galaxy exhibits all these properties in conjunction. On morphological grounds this galaxy looks like a normal distant luminous elliptical galaxy, since the Fundamental Plane tells us that higher luminosity normal elliptical galaxies tend to have lower surface-brightnesses. Markarian 1460 has 2×107 Mo of H i and a ratio M(H i)/LB of 0.2, which is low compared to the typical values for star-forming dwarf galaxies. From the high surface-brightness and r1/4 profile, we infer that the baryonic component of Markarian 1460 has become self-gravitating through dissipative processes. From the colours, radio continuum, H i and optical emission line properties, and yet smooth texture, we infer that Markarian 1460 has had significant star formation as recently as ~1 Gyr ago but not today. | en |
dc.format.extent | 8338 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | Blackwell Publishing for the Royal Astronomical Society | en |
dc.relation.uri | http://adsabs.harvard.edu/cgi-bin/bib_query?2001MNRAS.325.1275T | en |
dc.relation.uri | http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2001MNRAS.325.1275T&data_type=PDF_HIGH&type=PRINTER&filetype=.pdf | en |
dc.rights | (2001) Royal Astronomical Society | en |
dc.subject | GALAXIES: CLUSTERS: INDIVIDUAL: URSA MAJOR | en |
dc.subject | GALAXIES: INDIVIDUAL: MARKARIAN 1460 | en |
dc.subject | GALAXIES: PHOTOMETRY | en |
dc.title | The anomalous properties of Markarian 1460 | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
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2001_MNRAS_Vol.325_p1275.pdf | Open Access | 233.26 kB | Adobe PDF | View/Open |
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