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We have carried out spectroscopic observations in 4 cluster fields using Subaru's FOCAS multi-slit spectrograph and obtained spectra for 103 bright disk field and cluster galaxies at $0.06 \le z \le 1.20$. Seventy-seven of these show…

Astrophysics · Physics 2009-11-13 O. Nakamura , A. Aragon-Salamanca , B. Milvang-Jensen , N. Arimoto , C. Ikuta , S. P. Bamford

We present 18 spectra, obtained with the Keck 10m telescope, of faint field galaxies (19 $<$ I $<$ 22, 0.2 $<$ z $<$ 0.84) previously imaged by {\it HST's} WFPC2. Though small, our sample appears to be representative of field spirals with a…

Astrophysics · Physics 2009-10-28 Duncan A. Forbes , Andrew C. Phillips , David C. Koo , Garth D. Illingworth

MASSIV (Mass Assembly Survey with SINFONI in VVDS) is a sample of 84 distant star-forming galaxies observed with the SINFONI Integral Field Unit (IFU) on the VLT. These galaxies are selected inside a redshift range of 0.8 < z < 1.9, i.e.…

We present 0.5" resolution near-IR integral field spectroscopy of the Ha line emission of 14 z~2 UV-selected BM/BX galaxies obtained with SINFONI at ESO/VLT. The mean Ha half-light radius r_1/2 is about 4kpc and line emission is detected…

(abridged) DYNAMO is a multi-wavelength, spatially-resolved survey of local ($z \sim 0.1$) star-forming galaxies designed to study evolution through comparison with samples at z~2. Half of the sample has integrated H-alpha luminosities of…

[Context] Recent detections of disks around young high-mass stars support the idea of massive star formation through accretion rather than coalescence, but the detailed kinematics in the equatorial region of the disk candidates is not well…

Astrophysics of Galaxies · Physics 2015-06-04 K. -S. Wang , F. F. S. van der Tak , M. R. Hogerheijde

We investigate the properties of the B-band Tully-Fisher (T-F) relation for 25 compact group galaxies, using Vmax derived from 2-D velocity maps. Our main result is that the majority of the Hickson Compact Group galaxies lie on the T-F…

Astrophysics · Physics 2009-11-10 C. Mendes de Oliveira , P. Amram , H. Plana , C. Balkowski

This series of papers is dedicated to a new technique to select galaxies that can act as standard rods and standard candles in order to perform geometrical tests on large samples of high redshift galaxies to constrain different cosmological…

Astrophysics · Physics 2009-11-13 A. Saintonge , K. L. Masters , C. Marinoni , K. Spekkens , R. Giovanelli , M. P. Haynes

We present adaptive optics (AO) assisted SINFONI integral field unit (IFU) spectroscopy of eleven H$\alpha$ emitting galaxies selected from the High-Z Emission Line Survey (HiZELS). We obtain spatially resolved dynamics on ~kpc-scales of…

Astrophysics of Galaxies · Physics 2017-01-18 J. Molina , E. Ibar , A. M. Swinbank , D. Sobral , P. N. Best , I. Smail , A. Escala , M. Cirasuolo

We study the kinematics and scaling relations of a sample of 43 giant spiral galaxies that have stellar masses exceeding $10^{11}$ $M_\odot$ and optical discs up to 80 kpc in radius. We use a hybrid 3D-1D approach to fit 3D kinematic models…

Astrophysics of Galaxies · Physics 2021-09-22 Enrico M. Di Teodoro , Lorenzo Posti , Patrick M. Ogle , S. Michael Fall , Thomas Jarrett

We introduce a method for modeling disk galaxies designed to take full advantage of data from integral field spectroscopy (IFS). The method fits equilibrium models to simultaneously reproduce the surface brightness, rotation and velocity…

HD 142527 is a well-studied intermediate-mass T Tauri star surrounded by a transitional disk with a large dust cavity, spiral structures, and an accreting low-mass companion. Despite extensive observations, the system's inner regions remain…

Earth and Planetary Astrophysics · Physics 2026-05-07 T. M. H. Tran , M. Langlois , O. Flasseur , J. -C. Augereau , A. Boccaletti , P. Delorme , R. Gratton , A. Kaszczyc , A. -M. Lagrange

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 investigate the evolution of the Tully-Fisher relation out to z=1 with 137 emission-line galaxies in the field that display a regular rotation curve. They follow a linear trend with lookback time being on average brighter by 1.1Bmag and…

Astrophysics of Galaxies · Physics 2015-06-23 Bodo Ziegler , Asmus Boehm

Observational parameters which can be used for redshift-independent distance determination using the Tully-Fisher (TF) technique are given for 782 spiral galaxies in the fields of 24 clusters or groups. I band photometry for the full sample…

Astrophysics · Physics 2009-07-28 R. Giovanelli , M. Haynes , T. Herter , N. Vogt , L. da Costa , W. Freudling , J. Salzer , G. Wegner

In this paper we review the present status and implications of H-alpha surveys at various redshifts. With the advent of sensitive wide-format near-infrared detectors on large telescopes, deep and extensive H-alpha surveys are now feasible…

Astrophysics · Physics 2017-01-25 Paul P. van der Werf , Alan F. M. Moorwood , Lin Yan

We have studied the kinematic properties of the candidates for hot subdwarfs (HSDs) selected by Geier et al. from the Gaia DR2 catalogue. We have used a total of 12 515 stars with relative trigonometric parallax errors less than 30\%. The…

Astrophysics of Galaxies · Physics 2019-10-03 V. V. Bobylev , A. T. Bajkova

We describe the first results of a programme to obtain rotation curves of z~1 disc galaxies in the near-infrared using the Ha emission line in order to study the Tully-Fisher relation. To put any observed evolution into perspective and to…

Astrophysics · Physics 2007-05-23 M. Barden , M. D. Lehnert , L. Tacconi , R. Genzel , S. White , A. Franceschini

We have measured the intrinsic disk ellipticity for 7 nearby, nearly face-on spiral galaxies by combining Densepak integral-field spectroscopy with I-band imaging from the WIYN telescope. Initially assuming an axisymmetric model, we…

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