Photometry of Hickson Compact Group N.90
نویسندگان
چکیده
منابع مشابه
Hickson 96 : a physical compact group ⋆
We analyze the morphology and dynamics of the galaxies of the Hickson 96 compact group by means of deep CCD images in the B, V and R photometric bands and long–slit spectroscopy. The four galaxies of this spiral rich group show signs of gravitational interaction. Two long tails come out from the contact region of the close pair H96ac. It is also there where both galaxies, bi-symmetrical in thei...
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We report results of a search for optical emission line gas in the Hickson compact group 62. From narrow band (Hα) imaging observations we estimate 10 4 M ⊙ of ionized hydrogen gas within the central regions of three of the galaxies in the group. There has been considerable interest in this group since ROSAT detected an extended halo of diffuse X-ray emission, possibly with a cooling flow at th...
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We present kinematic observations of Hα emission for two early-type galaxies and one disk system, members of the Hickson compact group 90 (HCG 90) obtained with a scanning Fabry-Perot interferometer and samplings of 16 km s −1 and 1 ′′. Mapping of the gas kinematics was possible to ∼ 2 r ef f for the disk galaxy N7174 and to ∼ 1.3 r ef f and ∼ 1.7 r ef f for the early-type galaxies N7176 and N7...
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We present a sample of 46 galaxy nuclei from 12 nearby (z < 4500km s) Hickson Compact Groups (HCGs) with a complete suite of 1–24μm 2MASS+Spitzer nuclear photometry. For all objects in the sample, blue emission from stellar photospheres dominates in the near-infrared through the 3.6μm IRAC band. Twenty-five of 46 (54%) galaxy nuclei show red, mid-infrared continua characteristic of hot dust pow...
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We have observed 70 galaxies belonging to 45 Hickson compact groups in the CO(1→0) and CO(2→1) lines, in order to determine their molecular content. We detected 57 galaxies, corresponding to a detection rate of 81%. We compare the gas content relative to blue and LFIR luminosities of galaxies in compact groups with respect to other samples in the literature, including various environments and m...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1994
ISSN: 0074-1809
DOI: 10.1017/s007418090004821x