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相关论文: A Massive Disk Galaxy at z=1.34

200 篇论文

We present spatially resolved stellar kinematic maps, for the first time, for a sample of 17 intermediate redshift galaxies (0.2 < z < 0.8). We used deep MUSE/VLT integral field spectroscopic observations in the Hubble Deep Field South…

Massive disk galaxies like the Milky Way are expected to form at late times in traditional models of galaxy formation, but recent numerical simulations suggest that such galaxies could form as early as a billion years after the Big Bang…

星系天体物理 · 物理学 2020-05-21 Marcel Neeleman , J. Xavier Prochaska , Nissim Kanekar , Marc Rafelski

We confirm, quantify, and provide a table of the coherent velocity substructure of the Milky Way disk within 2 kpc of the Sun towards the Galactic anticenter, with 0.2 kpc resolution. We use the radial velocities of ~340,000 F-type stars…

星系天体物理 · 物理学 2017-10-11 Alan N. Pearl , Heidi Jo Newberg , Jeffrey L. Carlin , R. Fiona Smith

We describe hydrodynamical simulations of galaxy formation in a Lambda cold dark matter (CDM) cosmology performed using a subresolution model for star formation and feedback in a multiphase interstellar medium (ISM). In particular, we…

天体物理学 · 物理学 2009-07-09 B. E. Robertson , N. Yoshida , V. Springel , L. Hernquist

We identify some of the most HI massive and fastest rotating disk galaxies in the local universe with the aim of probing the processes that drive the formation of these extreme disk galaxies. By combining data from the Cosmic Flows project,…

星系天体物理 · 物理学 2015-06-23 H. M. Courtois , D. Zaritsky , J. G. Sorce , D. Pomarede

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

Combining resolved optical spectroscopy with panoramic HST imaging, we study the dynamical properties of spiral galaxies as a function of position across two intermediate redshift clusters, and we compare the cluster population to field…

天体物理学 · 物理学 2011-02-11 Sean M. Moran , Neil Miller , Tommaso Treu , Richard S. Ellis , Graham P. Smith

We report evidence of ordered orbital motion in luminous star-forming galaxies at z~1.3. We present integral field spectroscopy (IFS) observations, performed with the OH Suppressing InfraRed Imaging Spectrograph (OSIRIS) system, assisted by…

Observations of the rest-frame UV emission of high-redshift galaxies suggest that the early stages of galaxy formation involve disturbed structures. Imaging the cold interstellar medium can provide a unique view of the kinematics associated…

We present new measures of the evolving scaling relations between stellar mass, luminosity and rotational velocity for a morphologically-inclusive sample of 129 disk-like galaxies with z_AB<22.5 in the redshift range 0.2<z<1.3, based on…

宇宙学与河外天体物理 · 物理学 2011-10-27 Sarah H. Miller , Kevin Bundy , Mark Sullivan , Richard S. Ellis , Tommaso Treu

In this letter we present the first 3D spectroscopic study of H-alpha emission in a z ~ 1 field galaxy with an integral field unit. Using the CIRPASS spectrograph on Gemini-South we map the spatial and velocity distribution of H-alpha…

We report the discovery of a 20-kpc-sized H{\alpha} emission in SDSS J083803.68+540642.0, a ringed dwarf galaxy (M$_V$ = -17.89 mag) hosting an accreting intermediate-mass black hole at z=0.02957. Analysis of the HST images indicates that…

星系天体物理 · 物理学 2017-03-15 Wen-Juan Liu , Lei Qian , Xiao-Bo Dong , Ning Jiang , Paulina Lira , Zheng Cai , Feige Wang , Jinyi Yang , Ting Xiao , Minjin Kim

We present the first metallicity gradient measurement for a grand-design face-on spiral galaxy at z~1.5. This galaxy has been magnified by a factor of 22$\times$ by a massive, X-ray luminous galaxy cluster MACS\,J1149.5+2223 at z=0.544.…

宇宙学与河外天体物理 · 物理学 2015-05-27 T. -T. Yuan , L. J. Kewley , A. M. Swinbank , J. Richard , R. C. Livermore

Context. The study of high redshift Tully-Fisher relations (TFRs) is limited by the use of long slit spectrographs, rest frame B band and star formation selected galaxies. Aims. We try to circumvent these issues by using integral field…

天体物理学 · 物理学 2009-11-13 L. van Starkenburg , P. P. van der Werf , M. Franx , I. Labbe , G. Rudnick , S. Wuyts

We investigate the stellar structure of massive, quiescent galaxies at z~2, based on Hubble Space Telescope/WFC3 imaging from the Early Release Science program. Our sample of 14 galaxies has stellar masses of M* > 10^{10.8} Msol and…

Using a high-resolution cosmological numerical simulation, we have analyzed the evolution of galaxies at z~10 in a highly overdense region of the universe. These objects could represent the high redshift galaxies recently observed by the…

宇宙学与河外天体物理 · 物理学 2015-05-28 Emilio Romano-Diaz , Jun-Hwan Choi , Isaac Shlosman , Michele Trenti

We present adaptive optics assisted, spatially resolved spectroscopy of a sample of nine H-alpha-selected galaxies at z=0.84--2.23 drawn from the HiZELS narrow-band survey. These galaxies have star-formation rates of 1-27Mo/yr and are…

宇宙学与河外天体物理 · 物理学 2012-09-10 Mark Swinbank , David Sobral , Ian Smail , Jim Geach , Philip Best , Ian McCarthy , Rob Crain , Tom Theuns

Spatially resolved velocity profiles are presented for nine faint field galaxies in the redshift range 0.1 < z < 1, based on moderate-resolution spectroscopy obtained with the Keck 10 m telescope. These data were augmented with…

While bright, blue, compact galaxies are common at $\rm z \sim 1$, they are relatively rare in the local universe, and their evolutionary paths are uncertain. We have obtained resolved H I observations of nine $\rm z \sim 0$ luminous…

星系天体物理 · 物理学 2018-01-08 Katie Rabidoux , D. J. Pisano , C. A. Garland , Rafael Guzman , Francisco J. Castander , Spencer Wolfe