Morphological Properties of Unusually Warm IRAS Galaxies
نویسندگان
چکیده
منابع مشابه
The clustering of warm and cool IRAS galaxies
We use a series of statistical techniques to compare the clustering of samples of IRAS galaxies selected on the basis of their far-infrared emission temperature, to see whether a temperature-dependent eeect, such as might be produced by interaction-induced star formation, could be responsible for the increase in clustering strength with redshift in the QDOT redshift survey that has been reporte...
متن کاملOptical Properties of 4248 IRAS Galaxies
We have investigated optical properties of 4248 infrared galaxies (IRGs) by positionally matching data from the Infrared Astronomical Satellite (IRAS) and the Sloan Digital Sky Survey Data Release 3 (SDSS DR3). Due to the large sky area coverage of both surveys, we have obtained an opportunity to study an unprecedentedly large number of 4248 infrared galaxies spanning four orders of infrared lu...
متن کاملThe Clustering of Iras Galaxies
We investigate the clustering of galaxies in the QDOT redshift survey of IRAS galaxies. We find that the two-point correlation function is well approximated by a powerlaw of slope −1.11±0.09, with clustering length 3.87±0.32h−1 Mpc* out to pair separations of ∼ 25h Mpc. On scales larger than ∼ 40h Mpc, the correlation function is consistent with zero. The rms fluctuation in the count of QDOT ga...
متن کاملWarm Ultraluminous Galaxies in the Iras Survey: the Transition from Galaxy
Of 90 extragalactic objects chosen from the I RAS catalog on the basis of brightness at 60 μm and "warm" infrared color [f.(25 μm)lfv(60 μm) > 0.2], 12 have luminosities characteristic of quasars. These 12 ultraluminous objects have Seyfert spectra, and nine of them show morphological evidence for recent collisions or mergers-they plausibly represent a transition stage between cooler ultralumin...
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Near-infrared photometry at /, H, and K has been obtained for 82 galaxies from the IRAS minisurvey, a sample of infrared-selected galaxies. The near-infrared colors of these galaxies are similar to those of normal field spiral galaxies, but cover a larger range inJ — H and H — K. There is evidence of a tighter correlation between the nearand far-infrared emission than exists between the far-inf...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1989
ISSN: 0074-1809
DOI: 10.1017/s0074180900141506