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相关论文: Kinematic analysis of $\mathbf{z = 4.3}$ galaxies …

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We aim to characterize the multi-phase gas in the SPT2349-56 protocluster at z=4.3, known to host one of the most starbursting and AGN-rich high redshift environments.For this purpose we conducted APEX single dish observations of the…

We took spatially resolved slit FORS2 spectra of 19 cluster galaxies at z=1.4, and 8 additional field galaxies at 1<z<1.2 using the ESO Very Large Telescope. The targets were selected from previous spectroscopic and photometric campaigns.…

星系天体物理 · 物理学 2017-09-27 J. M. Pérez-Martínez , B. Ziegler , M. Verdugo , A. Böhm , M. Tanaka

We have observed the three low-mass protostars, IRAS 15398$-$3359, L1527 IRS and TMC-1A, with the ALMA 12-m array, the ACA 7-m array, and the IRAM-30m and APEX telescopes in the C$^{18}$O $J=2$-1 emission. Overall, the C$^{18}$O emission…

太阳与恒星天体物理 · 物理学 2023-01-18 Jinshi Sai , Nagayoshi Ohashi , Hsi-Wei Yen , Anaëlle J. Maury , Sébastien Maret

There are only a few tracers available to probe the kinematics of individual early-type galaxies beyond one effective radius. Here we directly compare a sample of planetary nebulae (PNe), globular clusters (GCs) and galaxy starlight…

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

We introduce our project on galaxy evolution in the environment of rich clusters aiming at disentangling the importance of specific interaction and galaxy transformation processes from the hierarchical evolution of galaxies in the field.…

天体物理学 · 物理学 2009-11-10 B. L. Ziegler , A. Böhm , K. Jäger , J. Heidt , C. Möllenhoff

We have performed intermediate-resolution VLT/FORS spectroscopy and HST/ACS imaging of 129 field spiral galaxies within the FORS Deep Field. The galaxies cover the redshift range 0.1 < z < 1.0 and comprise all types from Sa to Sdm/Im.…

天体物理学 · 物理学 2007-05-23 Asmus Boehm , Bodo L. Ziegler

This is the first of a series of papers devoted to the investigation of a large sample of brightest cluster galaxies (BCGs), their kinematic and stellar population properties, and the relationships between those and the properties of the…

天体物理学 · 物理学 2009-11-13 S. I. Loubser , A. E. Sansom , P. Sanchez-Blazquez , I. K. Soechting , G. E. Bromage

We present spatially resolved kinematics of 27 ALMA-identified dust-obscured star-forming galaxies (DSFGs) at $z\sim$1.3-2.6, as traced by H$\alpha$ emission using VLT/KMOS near-infrared integral field spectroscopy from the "KMOS-ALMA…

[Abridged] Due to their large distances, high-z galaxies are observed at a very low spatial resolution. In order to disentangle the evolution of galaxy kinematics from low resolution effects, we have used Fabry-Perot 3D Ha data-cubes of 153…

宇宙学与河外天体物理 · 物理学 2017-01-04 B. Epinat , P. Amram , C. Balkowski , M. Marcelin

The study of the evolution of star-forming galaxies requires the determination of accurate kinematics and scaling relations out to high redshift. In this paper we select a sample of 18 galaxies at z~1, observed in the H-alpha emission-line…

星系天体物理 · 物理学 2016-10-19 E. M. Di Teodoro , F. Fraternali , S. H. Miller

We present new observations of the field containing the z=3.786 protocluster, PC217.96+32.3. We confirm that it is one of the largest and most overdense high-redshift structures known. Such structures are rare even in the largest…

Aims: We resolve the small-scale structure around the high-mass hot core region G351.77-0.54 to investigate its disk and fragmentation properties. Methods: Using ALMA at 690GHz with baselines exceeding 1.5km, we study the dense gas, dust…

星系天体物理 · 物理学 2017-07-05 H. Beuther , A. J. Walsh , K. G. Johnston , Th. Henning , R. Kuiper , S. N. Longmore , C. M. Walmsley

We present a kinematic study of the outer regions (R_25<R<2 R_25) of 17 edge-on disk galaxies. Using deep long-slit spectroscopy (flux sensitivity a few 10^-19 erg s^-1 cm^-2 arcsec^-2), we search for H-alpha emission, which must be emitted…

天体物理学 · 物理学 2009-11-13 Daniel Christlein , Dennis Zaritsky

The SPT0311-58 system resides in a massive dark matter halo at z ~ 6.9. It hosts two dusty galaxies (E and W) with a combined star formation rate of ~3500 Msun/yr. Its surrounding field exhibits an overdensity of sub-mm sources, making it a…

The fragmentation mode of high-mass molecular clumps and the accretion processes that form the most massive stars ($M\gtrsim 8M_\odot$) are still not well understood. To this end, we have undertaken a large observational program (CORE)…

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

Galaxy clusters serve as a unique and valuable laboratory for probing cosmological models and understanding astrophysics at the high-mass limit of structure formation. Clusters that are dynamically relaxed are especially useful targets of…

The formation of protoplanetary disks is not well understood. To understand how and when these disks are formed, it is crucial to characterize the kinematics of the youngest protostars at a high angular resolution. Here we study a sample of…

太阳与恒星天体物理 · 物理学 2020-03-04 S. Maret , A. J. Maury , A. Belloche , M. Gaudel , Ph. André , S. Cabrit , C. Codella , C. Lefèvre , L. Podio , S. Anderl , F. Gueth , P. Hennebelle