中文
相关论文

相关论文: The different baryonic Tully-Fisher relations at l…

200 篇论文

The ratio of baryonic-to-dark matter in present-day galaxies constrains galaxy formation theories and can be determined empirically via the baryonic Tully-Fisher relation (BTFR), which compares a galaxy's baryonic mass (Mbary) to its…

The baryonic Tully Fisher relation (bTFR) provides an empirical connection between baryonic mass and dynamical mass (measured by the maximum rotation velocity) for galaxies. Due to the impact of baryonic feedback in the shallower potential…

We present the results of a baryonic Tully-Fisher relation (BTFR) study for a local sample of relatively isolated disk galaxies. We derive a BTFR with a slope near 3 measured over about 4 dex in baryon mass for our combined…

宇宙学与河外天体物理 · 物理学 2015-05-18 Sebastián Gurovich , Kenneth Freeman , Helmut Jerjen , Lister Staveley-Smith , Ivânio Puerari

We study the baryonic Tully-Fisher relation (BTFR) at z=0 using 153 galaxies from the SPARC sample. We consider different definitions of the characteristic velocity from HI and H-alpha rotation curves, as well as HI line-widths from…

星系天体物理 · 物理学 2020-10-26 Federico Lelli , Stacy S. McGaugh , James M. Schombert , Harry Desmond , Harley Katz

We investigate the Baryonic Tully-Fisher Relation (BTFR) in the $(100\,h^{-1}{\rm Mpc})^3$ Simba hydrodynamical galaxy formation simulation together with a higher-resolution $(25\,h^{-1}{\rm Mpc})^3$ Simba run, for over $10,000$…

星系天体物理 · 物理学 2020-09-02 M. Glowacki , E. Elson , R. Davé

We use a sample of 97 galaxies selected from the ALFALFA 21cm survey to make an accurate measurement of the baryonic Tully-Fisher relation (BTFR). These galaxies are specifically selected to be heavily gas-dominated (Mgas/M* >~ 2.7) and to…

星系天体物理 · 物理学 2016-09-14 E. Papastergis , E. A. K. Adams , J. M. van der Hulst

The baryonic Tully-Fisher relation (BTF) is a fundamental relation between baryonic mass and maximum rotation velocity. It can be used to estimate distances, as well as to constrain the properties of dark matter and its relation with the…

宇宙学与河外天体物理 · 物理学 2015-05-13 C. Trachternach , W. J. G. de Blok , S. S. McGaugh , J. M. van der Hulst , R. -J. Dettmar

The Baryonic Tully-Fisher Relation (BTFR) is an empirical relation between baryonic mass and rotation velocity in disk galaxies. It provides tests of galaxy formation models in LCDM and of alternative theories like MOND. Observations of gas…

宇宙学与河外天体物理 · 物理学 2014-05-28 Stacy McGaugh

Providing a theoretical basis for the baryonic Tully-Fisher Relation (BTFR; baryonic mass vs rotational velocity in spiral galaxies) in the LCDM paradigm has proved problematic. Simple calculations suggest too low a slope and too high a…

宇宙学与河外天体物理 · 物理学 2012-09-04 Harry Desmond

The baryonic Tully-Fisher relation (BTFR), a relationship between rotational velocity and baryonic mass in spiral galaxies, probes the relative content of baryonic and dark matter in galaxies and thus provides a good test of Lambda CDM.…

星系天体物理 · 物理学 2025-12-29 Nitya Ravi , Kelly A. Douglass , Regina Demina

We present a new empirical relation between galaxy dark matter halo mass (${\rm M_{halo}}$) and the velocity along the flat portion of the rotation curve (${\rm V_{flat}}$), derived from 120 late-type galaxies from the SPARC database. The…

星系天体物理 · 物理学 2018-11-07 Harley Katz , Harry Desmond , Stacy McGaugh , Federico Lelli

The Baryonic Tully-Fisher relation (BTFR) is a clear manifestation of the underlying physics of galaxy formation. As such, it is used to constrain and test galaxy formation and evolution models. Of particular interest, apart from the slope…

星系天体物理 · 物理学 2016-02-17 Sorce Jenny G. , Guo Quan

The scaling of disk galaxy rotation velocity with baryonic mass (the "Baryonic Tully-Fisher" relation, BTF) has long confounded galaxy formation models. It is steeper than the M ~ V^3 scaling relating halo virial masses and circular…

We present a study of the stellar and baryonic Tully-Fisher relation within the redshift range of $0.6 \leq z \leq 2.5$ utilizing observations of \sfgs. This dataset, as explored in \citet{GS23}, comprises of disk-like galaxies spanning a…

星系天体物理 · 物理学 2024-09-25 Gauri Sharma , Varenya Upadhyaya , Paolo Salucci , Shantanu Desai

[abr.] Using the multi-integral-field spectrograph GIRAFFE at VLT, we previsouly derived the stellar-mass Tully-Fisher Relation (smTFR) at z~0.6, and found that the distant relation is systematically offset by roughly a factor of two toward…

宇宙学与河外天体物理 · 物理学 2015-05-13 M. Puech , F. Hammer , H. Flores , R. Delgado-Serrano , M. Rodrigues , Y. Yang

The Baryonic Tully-Fisher Relation (BTFR) has applications in galaxy evolution as a testbed for the galaxy-halo connection and in observational cosmology as a redshift-independent secondary distance indicator. We use the 31,000+ galaxy…

We study Tully-Fisher relations for a sample that combines extremely faint (M_B > -14.0) galaxies along with bright (i.e. L_*) galaxies. Accurate (~ 10%) distances, I band photometry, and B-V colors are known for the majority of the…

天体物理学 · 物理学 2009-11-13 Ayesha Begum , Jayaram N. Chengalur , I. D. Karachentsev , M. E. Sharina

We explore the use of the baryonic Tully-Fisher relation (bTFR) as a new distance indicator. Advances in near-IR imaging and stellar population models, plus precise rotation curves, have reduced the scatter in the bTFR such that distance is…

宇宙学与河外天体物理 · 物理学 2020-07-29 James Schombert , Stacy McGaugh , Federico Lelli

We examine the evolution of the Tully-Fisher relation (TFR) using a sample of 89 field spirals, with 0.1 < z < 1, for which we have measured confident rotation velocities (Vrot). By plotting the residuals from the local TFR versus redshift,…

天体物理学 · 物理学 2009-11-13 S. P. Bamford , A. Aragon-Salamanca , B. Milvang-Jensen

The baryonic Tully-Fisher relation (BTFR) is a valuable observational tool and a critical test of galaxy formation theory. We explore the systematic uncertainty in the slope and the scatter of the observed line width BTFR utilizing…

星系天体物理 · 物理学 2016-11-15 Jeremy D. Bradford , Marla C. Geha , Frank C. van den Bosch
‹ 上一页 1 2 3 10 下一页 ›