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相关论文: Molecular gas in the intergalactic medium of Steph…

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Stephan's Quintet (SQ) is a system consisting of at least four interacting galaxies which is well known for its complex dynamical and star formation history. It possesses a rich intergalactic medium (IGM), where hydrogen clouds, both atomic…

We report on single-dish radio CO observations towards the inter-galactic medium (IGM) of the Stephan's Quintet (SQ) group of galaxies. Extremely bright mid-IR H2 rotational line emission from warm molecular gas has been detected by Spitzer…

Stephan's Quintet (SQ, distance=85$\pm$6 Mpc) is unique among compact groups of galaxies. Observations have previously shown that interactions between multiple members, including a high-speed intruder galaxy currently colliding into the…

星系天体物理 · 物理学 2022-08-11 C. K. Xu , C. Cheng , P. N. Appleton , P. -A. Duc , Y. Gao , N. -Y. Tang , M. Yun , Y. S. Dai , J. -S. Huang , U. Lisenfeld , F. Renaud

We have mapped with the IRAM interferometer at Plateau de Bure (PdBI) the 12CO emission towards intergalactic star forming regions located in the tidal tail stemming from NGC7319, in the Stephan's Quintet compact group of galaxies. The 13CO…

天体物理学 · 物理学 2009-11-10 U. Lisenfeld , J. Braine , P. -A. Duc , E. Brinks , V. Charmandaris , S. Leon

We present the first interferometric evidence of CO(1-0) emission in the intragroup starburst (IGS) region of HCG~92 (Stephan's Quintet). BIMA's large primary beam covers fully both the IGS region and the dominant group member galaxy…

天体物理学 · 物理学 2009-10-31 Yu Gao , Cong Xu

We present high resolution CO J=1-0 observations of the molecular gas in the Hickson Compact Group Stephan's Quintet (HCG92). Our observations consist of multiple pointing and mosaics covering all the regions where CO and star formation has…

天体物理学 · 物理学 2009-11-13 Glen R. Petitpas , Christopher L. Taylor

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…

New multi-band observations of the famous compact group of galaxies Stephan's Quintet (SQ) are presented and analyzed. These include far infrared (FIR) images at 60$\mu m$ and 100$\mu m$ (ISOPHOT C-100 camera), radio continuum images at 1.4…

天体物理学 · 物理学 2008-11-26 C. K. Xu , N. Lu , J. J. Condon , M. Dopita , R. J. Tuffs

We present new observational evidence supporting the hypothesis that SQ-A, a starburst in the intra-group medium (IGrM) of Stephan's Quintet (SQ), is triggered by a high-speed collision between two gas systems, one associated with the IGrM…

Based on SITELLE spectroscopy, we studied the ionised gas emission for the 175 H$\alpha$ emission regions in the Stephan's Quintet (SQ). A detailed analysis is performed of the star formation rate (SFR), oxygen abundance (O/H), 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 analyse a comprehensive set of MIR/FIR observations of Stephan's Quintet (SQ), taken with the Spitzer Space Observatory. Our study reveals the presence of a luminous (L_{IR}\approx 4.6x10^43 erg/s) and extended component of infrared dust…

宇宙学与河外天体物理 · 物理学 2015-05-20 G. Natale , R. J. Tuffs , C. K. Xu , C. Popescu , J. Fischera , U. Lisenfeld , N. Lu , P. Appleton , M. Dopita , P. -A. Duc , Y. Gao , W. Reach , J. Sulentic , M. Yun

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

We present Hubble Space Telescope Cosmic Origin Spectrograph (COS) UV line spectroscopy and integral-field unit (IFU) observations of the intra-group medium in Stephan's Quintet (SQ). SQ hosts a 30 kpc long shocked ridge triggered by a…

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 investigated the star formation efficiency for all the dust emitting sources in Stephan's Quintet (SQ). We inferred star formation rates using Spitzer MIR/FIR and GALEX FUV data and combined them with gas column density measurements by…

宇宙学与河外天体物理 · 物理学 2012-03-16 G. Natale , R. J. Tuffs , C. K. Xu , C. C. Popescu , J. Fischera , U. Lisenfeld , N. Lu , P. Appleton , M. Dopita , P. -A. Duc , Y. Gao , W. Reach , J. Sulentic , M. Yun

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…

The Stephan's Quintet (SQ, HCG92) was observed with the Far-Infrared Surveyor (FIS) aboard AKARI in four far-infrared (IR) bands at 65, 90, 140, and 160 um. The AKARI four-band images of the SQ show far-IR emission in the intergalactic…

宇宙学与河外天体物理 · 物理学 2015-05-27 Toyoaki Suzuki , Hidehiro Kaneda , Takashi Onaka , Tetsu Kitayama

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 review recent observations of molecular gas in nearby galaxies and their implications for the star formation law on large (>1 kpc) scales. High-resolution data provided by millimetre interferometers are now adding to the basic…

天体物理学 · 物理学 2007-05-23 Tony Wong , Michele D. Thornley
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