Deep learning for galaxy surface brightness profile fitting
نویسندگان
چکیده
منابع مشابه
Deep search for CO emission in the Low Surface Brightness galaxy Malin 1
A sensitive search for CO emission from the Low Surface Brightness Galaxy Malin 1 has yielded negative results. The nucleus and several positions corresponding to regions of star formation in the disk were observed in the CO(1– 0) and CO(2–1) lines with no detection. Use of a " standard " N (H 2)/I CO(1−0) conversion factor yields M H2 /M HI < 0.03. However, rather than argue that there is very...
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We have assessed the significance of Tully & Verheijen’s (1997) bimodal Ursa Major Cluster spiral galaxy near-infrared surface brightness distribution, focussing on whether this bimodality is simply an artifact of small number statistics. A KolmogorovSmirnov style of significance test shows that the total distribution is fairly represented by a single-peaked distribution, but that their isolate...
متن کاملDeep Field limiting magnitude : faint galaxy number counts from surface - brightness fluctuations
The faint end of the differential galaxy number counts, n(m), in the Hub-ble Deep Field (HDF) North has been determined for the F450W, F606W, and F814W filters by means of surface-brightness fluctuation (SBF) measurements. This technique allows us to explore n(m) beyond the limiting magnitude of the HDF, providing new, stronger constraints on the faint end of n(m). This has allowed us to test t...
متن کاملGalaxy Formation and Evolution: Low Surface Brightness Galaxies
We investigate in detail the hypothesis that low surface brightness galaxies (LSB) differ from ordinary galaxies simply because they form in halos with large spin parameters. We compute star formation rates using the Schmidt law, assuming the same gas infall dependence on surface density as used in models of the Milky Way. We build stellar population models, predicting colours, spectra, and che...
متن کاملThe First Co Map of a Low Surface Brightness Galaxy
Using the Owens Valley Radio Observatory Millimeter-Wavelength Array (OVRO) we have obtained the first CO map of a low surface brightness (LSB) galaxy. The studied galaxy, UGC 01922, was chosen for these observations because both of its previous CO detection with the IRAM 30m telescope and its classification as a Malin 1 ‘cousin’ – an LSB galaxy with MHI ≥ 10 10 M⊙. The OVRO map detected approx...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2017
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stx3186