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相关论文: New light and shadows on Stephan's Quintet

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Using the VLA, we have made spectral-line and continuum observations of the neutral hydrogen in the direction of the compact group of galaxies Stephan's Quintet. The high-velocity clouds between 5600 and 6600 km/s, the disk of the…

天体物理学 · 物理学 2015-06-24 B. A. Williams , M. S. Yun , L. Verdes-Montenegro

Stephan's Quintet, a compact group of galaxies, is often used as a laboratory to study a number of phenomena, including physical processes in the interstellar medium, star formation, galaxy evolution, and the formation of fossil groups. As…

星系天体物理 · 物理学 2018-01-24 Pierre-Alain Duc , Jean-Charles Cuillandre , Florent Renaud

We present new photometric and spectroscopic data for the galaxies in the compact group known as Stephan's Quintet. We find the strongest evidence for dynamical perturbation in the spiral component NGC7319. Most of the damage was apparently…

天体物理学 · 物理学 2007-05-23 Mariano Moles , Isabel Marquez , Jack W. Sulentic

We present new MeerKAT 21cm spectral line observations of the neutral hydrogen gas in the compact galaxy group Stephan's Quintet (HCG 92). These data provide a significantly improved view of the atomic gas distribution and kinematics in the…

Stephan's Quintet (SQ), the prototypical compact group of galaxies in the local Universe, has been observed with the imaging Fourier transform spectrometer SITELLE, attached to the CFHT, to perform a deep search for intergalactic…

星系天体物理 · 物理学 2019-09-13 S. Duarte Puertas , J. Iglesias-Páramo , J. M. Vilchez , L. Drissen , C. Kehrig , T. Martin

The Stephan's Quintet (SQ) is a famous interacting compact group of galaxies in an important stage of dynamical evolution, but surprisingly very few spectroscopic studies are found in the literature. We present optical integral field…

星系天体物理 · 物理学 2015-06-19 M. Rodriguez-Baras , F. F. Rosales-Ortega , A. I. Diaz , S. F. Sanchez , A. Pasquali

We present ALMA Total Power CO(1-0) mapping of Stephan's Quintet (SQ), a prototypical compact galaxy group, with a uniform noise level at a spatial scale of ~25 kpc. These observations provide the first complete view of molecular gas across…

Multiwavelength data for Stephan's Quintet (SQ) are consistent with the following model for this compact galaxy group. (1) Discordant redshift NGC 7320 is an unrelated foreground galaxy. (2) In the past SQ was an accordant redshift quartet…

天体物理学 · 物理学 2009-10-30 M. Moles , J. W. Sulentic , I. Márquez

Chandra observations of the compact galaxy group known as Stephan's Quintet (SQ) are presented. The major morphological features that were discovered with the ROSAT HRI are now imaged with higher resolution and S/N. The large scale shock…

天体物理学 · 物理学 2011-05-23 G. Trinchieri , J. Sulentic , D. Breitschwerdt , W. Pietsch

Stephan's Quintet (SQ) is a nearby compact galaxy group and a perfect laboratory for studying the process of galaxy evolution through galaxy harassment and interaction. By analysing the kinematics of SQ we aim to provide an increased…

星系天体物理 · 物理学 2021-12-11 M. Yttergren , P. Misquitta , Á. Sánchez-Monge , M. Valencia-S , A. Eckart , A. Zensus , T. Peitl-Thiesen

We use a deep Chandra observation to examine the structure of the hot intra-group medium of the compact group of galaxies Stephan's Quintet. The group is thought to be undergoing a strong dynamical interaction as an interloper, NGC 7318b,…

天体物理学 · 物理学 2011-02-11 E. O'Sullivan , S. Giacintucci , J. M. Vrtilek , S. Raychaudhury , L. P. David

we present the first GALEX UV images of the well known interacting group of galaxies, Stephan's Quintet (SQ). We detect widespread UV emission throughout the group. However, there is no consistent coincidence between UV structure and…

We carried out deep mapping observations of the atomic hydrogen (HI) 21 cm line emission in a field centered on the famous galaxy group Stephan's Quintet (SQ), using the Five-hundred-meter Aperture Spherical Telescope (FAST) equipped with…

We present the discovery of strong mid-infrared emission lines of molecular hydrogen of apparently high velocity dispersion (~870 km/s) originating from a group-wide shock wave in Stephan's Quintet. These Spitzer Space Telescope…

天体物理学 · 物理学 2009-11-11 P. N. Appleton , K. C. Xu , W. Reach , M. A. Dopita , Y. Gao , N. Lu , C. C. Popescu , J. W. Sulentic , R. J. Tuffs , M. S. Yun

We carried out IFU optical spectroscopy on three pointings in and near the SQ shock. We used PMAS on the 3.5m Calar Alto telescope to obtain measures of emission lines that provide insight into physical properties of the gas. Severe…

宇宙学与河外天体物理 · 物理学 2015-06-03 J. Iglesias-Páramo , L. López-Martín , J. M. Vílchez , V. Petropoulou , J. W. Sulentic

Stephan's Quintet (SQ) is a compact group that we find in an atypical moment when a high velocity intruder is passing through it. The intrusion is particularly interesting because a previous intruder had stripped most of the gas from the…

天体物理学 · 物理学 2009-11-07 Jack W. Sulentic , M. Rosado , D. Dultzin-Hacyan , L. Verdes-Montenegro , G. Trinchieri , C. Xu , W. Pietsch

We present smoothed particle hydrodynamic models of the interactions in the compact galaxy group, Stephan's Quintet. This work is extension of the earlier collisionless N-body simulations of Renaud et al. in which the large-scale stellar…

宇宙学与河外天体物理 · 物理学 2015-05-30 Jeong-Sun Hwang , Curtis Struck , Florent Renaud , Philip Appleton

We present imaging Fabry-Perot observations of Halpha emission in the nearly edge-on spiral galaxy NGC 5775. We have derived a rotation curve and a radial density profile along the major axis by examining position-velocity (PV) diagrams…

天体物理学 · 物理学 2009-11-13 G. H. Heald , R. J. Rand , R. A. Benjamin , J. A. Collins , J. Bland-Hawthorn

A strong X-ray source only 8" from the nucleus of the Sy2 galaxy NGC 7319 in Stephan's Quintet has been discovered by Chandra. We have identified the optical counterpart and show it is a QSO with $z_e = 2.114$. It is also a ULX with $L_x =…

天体物理学 · 物理学 2009-11-10 Pasquale Galianni , E. M. Burbidge , H. Arp , V. Junkkarinen , G. Burbidge , Stefano Zibetti

We present the large-scale distribution and kinematics of cold molecular gas across the compact galaxy group Stephan's Quintet, based on CO(2-1) observations performed with the Atacama Compact Array (ACA) and CO(1-0) data from the Combined…

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