A FIRST ATTEMPT TO CALIBRATE THE BARYONIC TULLY-FISHER RELATION WITH GAS-DOMINATED GALAXIES

被引：103

作者：

Stark, D. V. ^{[1
]}

McGaugh, S. S. ^{[2
]}

Swaters, R. A. ^{[2
]}

机构：

[1] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27514 USA

[2] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

来源：

ASTRONOMICAL JOURNAL | 2009年 / 138卷 / 02期

关键词：

galaxies: dwarf; galaxies: kinematics and dynamics; SURFACE BRIGHTNESS GALAXIES; EXTENDED ROTATION CURVES; HI IMAGING OBSERVATIONS; DWARF IRREGULAR GALAXY; SPIRAL GALAXIES; MODIFIED DYNAMICS; STELLAR MASS; SUPERTHIN GALAXIES; LOCAL GROUP; RICH DWARF;

D O I：

10.1088/0004-6256/138/2/392

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calibrate the baryonic Tully-Fisher (BTF) relation using a sample of gas-dominated galaxies. These determine the absolute scale of the baryonic mass-rotation speed relation independent of the choice of stellar mass estimator. We find a BTF slope of 3.94 +/- 0.07 (random) +/- 0.08 (systematic) and a zero point of 1.79 +/- 0.26 (random) +/- 0.25 (systematic). We apply this relation to estimate the stellar masses of star-dominated galaxies. This procedure reproduces the trend of mass-to-light ratio with color predicted by population synthesis models. The normalization is also correct, consistent with empirical estimates of the initial mass function used in such models.

引用

页码：392 / 401

页数：10

共 52 条

[1] INFRARED LUMINOSITY-H I VELOCITY-WIDTH RELATION AND ITS APPLICATION TO THE DISTANCE SCALE [J].

AARONSON, M ;

HUCHRA, J ;

MOULD, J .

ASTROPHYSICAL JOURNAL, 1979, 229 (01) :1-13

[2] On the baryonic, stellar, and luminous scaling relations of disk galaxies [J].

Avila-Reese, V. ;

Zavala, J. ;

Firmani, C. ;

Hernandez-Toledo, H. M. .

ASTRONOMICAL JOURNAL, 2008, 136 (03) :1340-1360

[3] EXTENDED ROTATION CURVES OF SPIRAL GALAXIES - DARK HALOES AND MODIFIED DYNAMICS [J].

BEGEMAN, KG ;

BROEILS, AH ;

SANDERS, RH .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1991, 249 (03) :523-537

[4] A dwarf galaxy with a giant HI disk [J].

Begum, A ;

Chengalur, JN ;

Karachentsev, ID .

ASTRONOMY & ASTROPHYSICS, 2005, 433 (01) :L1-L4

[5] Kinematics of the dwarf irregular galaxy GR8 [J].

Begum, A ;

Chengalur, JN .

ASTRONOMY & ASTROPHYSICS, 2003, 409 (03) :879-886

[6] Baryonic Tully-Fisher relation for extremely low mass Galaxies [J].

Begum, Ayesha ;

Chengalur, Jayaram N. ;

Karachentsev, I. D. ;

Sharina, M. E. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 386 (01) :138-144

[7] Life in the last lane: star formation and chemical evolution in an extremely gas rich dwarf [J].

Begum, Ayesha ;

Chengalur, Jayaram N. ;

Kennicutt, Robert C. ;

Karachentsev, Igor D. ;

Lee, Janice C. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 383 (02) :809-816

[8] Stellar mass-to-light ratios and the Tully-Fisher relation [J].

Bell, EF ;

de Jong, RS .

ASTROPHYSICAL JOURNAL, 2001, 550 (01) :212-229

[9] The optical and near-infrared properties of galaxies. I. Luminosity and stellar mass functions [J].

Bell, EF ;

McIntosh, DH ;

Katz, N ;

Weinberg, MD .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 149 (02) :289-312

[10] The search for the missing baryons at low redshift [J].

Bregman, Joel N. .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 2007, 45 :221-259

← 1 2 3 4 5 6 →