中文
相关论文

相关论文: Internal Kinematics of UM 461 and CTS 1020

200 篇论文

We present an analysis of the H2 emission-line gas kinematics in the inner < 4 arcsec radius of six nearby spiral galaxies, based on AO-assisted integral-field observations obtained in the K-band with SINFONI/VLT. Four of the six galaxies…

星系天体物理 · 物理学 2015-06-18 X. Mazzalay , W. Maciejewski , P. Erwin , R. P. Saglia , R. Bender , M. H. Fabricius , N. Nowak , S. P. Rusli , J. Thomas

We present kinematic measurements of the thick and thin disks in two edge-on galaxies. We have derived stellar rotation curves at and above the galaxies' midplanes using Ca II triplet features measured with the GMOS spectrograph on Gemini…

天体物理学 · 物理学 2009-11-10 Peter Yoachim , Julianne J. Dalcanton

We present kinematic measurements of thin and thick disk components in a sample of nine edge-on galaxies. We extract stellar and ionized gas rotation curves at and above the galaxies' midplanes using the Ca II triplet absorption features…

天体物理学 · 物理学 2009-11-13 Peter Yoachim , Julianne J. Dalcanton

We present stellar and gaseous kinematics of the inner 350 pc radius of the Seyfert galaxy Mrk1066 derived from J and Kl bands data obtained with the Gemini NIFS at a spatial resolution of 35 pc. The stellar velocity field is dominated by…

宇宙学与河外天体物理 · 物理学 2015-05-20 Rogemar A. Riffel , Thaisa Storchi-Bergmann

Comparisons of the kinematics of Mg II absorbing gas and the stellar rotation curves in 0.5 < z < 1.0 spiral galaxies suggests that, at least in some cases, the extended gaseous envelopes may be dynamically coupled to the stellar matter. A…

天体物理学 · 物理学 2016-01-27 Chris Churchill , Chuck Steidel

In recent years integral-field spectroscopic surveys have revealed that the presence of kinematically decoupled stellar components is not a rare phenomenon in nearby galaxies. However, complete statistics are still lacking because they…

星系天体物理 · 物理学 2021-10-13 M. Rubino , A. Pizzella , L. Morelli , L. Coccato , E. Portaluri , V. P. Debattista , E. M. Corsini , E. Dalla Bontà

(Abridged) We study the impact of cluster environment on the evolution of spiral galaxies by examining their structure and kinematics. Rather than two-dimensional rotation curves, we observe complete velocity fields by placing three…

We present a comparison of the observed, spatially integrated stellar and ionized gas velocity dispersions of $\sim1000$ massive ($\log M_{\star}/M_{\odot}\gtrsim\,10.3$) galaxies in the Large Early Galaxy Astrophysics Census (LEGA-C)…

The study of stellar kinematic properties may provide hints on the formation and evolution of elliptical and lenticular galaxies. Although most previous studies have focused on the large scale of these galaxies, their central regions…

星系天体物理 · 物理学 2016-10-06 T. V. Ricci , J. E. Steiner , R. B. Menezes

The origin of diverse kinematic morphologies observed in low-mass galaxies is unclear. In this study, we investigate the kinematic morphologies of central galaxies with stellar mass $10^{8.5-9.0} M_\odot$ at $z=0$ in the TNG50-1…

星系天体物理 · 物理学 2024-07-04 Guangquan Zeng , Lan Wang , Liang Gao , Hang Yang

The shape of a galaxy's spatially unresolved, globally integrated 21-cm emission line depends on its internal gas kinematics: galaxies with rotation-supported gas disks produce double-horned profiles with steep wings, while galaxies with…

We present results from a survey of the internal kinematics of 49 star-forming galaxies at z$\,\sim\,$2 in the CANDELS fields with the Keck/MOSFIRE spectrograph (SIGMA, Survey in the near-Infrared of Galaxies with Multiple position Angles).…

We present two-dimensional (2D) mapping of the stellar velocity field within the inner 5 arcsec of six nearby active galaxies, using spectra obtained with the Integral Field Unit of the GMOS instrument at the Gemini North telescope. The…

We compare ionised gas and stellar kinematics of 16 star-forming galaxies ($\log(M_\star/M_\odot)=9.7-11.2$, SFR=6-86 $M_\odot/yr$) at $z\sim1$ using near-infrared integral field spectroscopy (IFS) of H$\alpha$ emission from the KMOS$^{\rm…

The kinematics of galaxies provide valuable insights in their physics and assembly history. Kinematics are governed not only by the gravitational potential, but also by merger events and stellar feedback processes such as stellar winds and…

星系天体物理 · 物理学 2022-10-26 Arjan Bik , Göran Östlin , Matthew Hayes , Jens Melinder , Veronica Menacho

In earlier papers in this series we determined the intrinsic stellar disc kinematics of fifteen intermediate to late type edge-on spiral galaxies using a dynamical modeling technique. From the photometry we find that intrinsically more…

天体物理学 · 物理学 2009-11-10 M. Kregel , P. C. van der Kruit , K. C. Freeman

We investigate the stellar disk structure of six nearby edge-on spiral galaxies using high-resolution JHKs-band images and 3D radiative transfer models. To explore how mass and environment shape spiral disks, we selected galaxies with…

星系天体物理 · 物理学 2015-06-23 Andrew Schechtman-Rook , Matthew A. Bershady

Recent zoom-in cosmological simulations have shown that stellar feedback can flatten the inner density profile of the dark matter halo in low-mass galaxies. A correlation between the stellar/gas velocity dispersion ($\sigma_{star}$,…

To understand the processes that build up galaxies we investigate the stellar structure and gas kinematics of spiral and irregular galaxies out to redshift 1. We target 92 galaxies in four cluster (z = 0.3 & 0.5) fields to study the…

宇宙学与河外天体物理 · 物理学 2009-09-17 Bodo L. Ziegler , Elif Kutdemir , Cristiano Da Rocha , Asmus Böhm , Reynier F. Peletier , Miguel Verdugo

We present a spectro-photometric survey of 2522 extragalactic globular clusters (GCs) around twelve early-type galaxies, nine of which have not been published previously. Combining space-based and multi-colour wide field ground-based…

‹ 上一页 1 2 3 10 下一页 ›