NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-18 T09:26:15 PDT
Help | Comment | NED Home

For refcode 2005ApJ...632..859M:
Retrieve 68 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
2005ApJ...632..859M The Baryonic Tully-Fisher Relation of Galaxies with Extended Rotation Curves and the Stellar Mass of Rotating Galaxies Stacy S. McGaugh Abstract. I investigate the baryonic Tully-Fisher relation for a sample of galaxies with extended 21 cm rotation curves spanning the range 20kms^-1^<~V_f_<=300kms^-1^. A variety of scalings of the stellar mass-to-light ratio {UPSILON}_*_ are considered. For each prescription for {UPSILON}_*_, I give fits of the form M_d_=AV^x^_f_. Presumably, the prescription that comes closest to the correct value will minimize the scatter in the relation. The fit with minimum scatter has A=50 M_sun_km^-4^s^4^ and x=4. This relation holds over five decades in mass. Galaxy color, stellar fraction, and {UPSILON}_*_ are correlated with each other and with M_d_, in the sense that more massive galaxies tend to be more evolved. There is a systematic dependence of the degree of maximality of disks on surface brightness. High surface brightness galaxies typically have {UPSILON}_*_~3/4 of the maximum disk value, while low surface brightness galaxies typically attain ~1/4 of this amount. Key words: Cosmology: Dark Matter, Galaxies: Kinematics and Dynamics, Galaxies: Spiral
Retrieve 68 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home