1995/01/26 by M. A. Zwaan, J. M. van der Hulst, W. J. G. de Blok +2 · 8 citations
Chemistry · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Astronomy #Astrophysics #Elliptical galaxy #Galaxy #Galaxy group #Lenticular galaxy #Luminous infrared galaxy #Physics #Spectroscopy and Laser Applications #Strong Light-Matter Interactions #Surface brightness #Surface brightness fluctuation #astro-ph
paper · pdf · doi:10.1093/mnras/273.1.l35
published as Mon.Not.Roy.Astron.Soc. 273 (1995) L35 · 9 pages, PostScript. Accepted for publication in Monthly Notices of the Royal Astronomical Society
arxiv created 1995/01/26 · openalex publication_date 1995/03/01 · arxiv updated 2016/06/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present the B-band Tully-Fisher relation for low surface brightness (LSB) galaxies. These LSB galaxies follow the same Tully-Fisher relation as normal spiral galaxies. This implies that the mass-to-light ratio (M/L) of LSB galaxies is typically a factor of 2 larger than that of normal galaxies of the same total luminosity and morphological type. Since the dynamical mass of a galaxy is related to the rotational velocity and scalelength via M∼V2h, at fixed linewidth LSB galaxies must be twice as large as normal galaxies. This is confirmed by examining the relation between scalelength and linewidth for LSB and normal galaxies. The universal nature of the Tully-Fisher relation can be understood if LSB galaxies are galaxies with low mass surface density, sigma. The mass surface density apparently controls the luminosity evolution of a galaxy in such a way as to keep the product σ M/L constant.