PB 9493-9494 intertacting galaxies: The correlation of IRAS sources with close pairs of PB UVe objects
| Autor: | Henri Reboul, C. Vanderriest |
|---|---|
| Přispěvatelé: | Groupe de Recherche en Astronomie et Astrophysique du Languedoc (GRAAL), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Physics
Luminous infrared galaxy Field (physics) 010308 nuclear & particles physics Radio galaxy Astronomy Astronomy and Astrophysics Astrophysics Disc galaxy 01 natural sciences Galaxy Peculiar galaxy Far infrared Space and Planetary Science 0103 physical sciences Elliptical galaxy [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] 010303 astronomy & astrophysics |
| Zdroj: | Astronomy and Astrophysics-A&A Astronomy and Astrophysics-A&A, EDP Sciences, 2002, 395 (2), pp.423-429. ⟨10.1051/0004-6361:20021331⟩ |
| ISSN: | 0004-6361 |
| DOI: | 10.1051/0004-6361:20021331⟩ |
| Popis: | International audience; The cross-correlation of close pairs of UV-excess objects from the Berger-Fringant catalogue with IRAS sources supplies three cases. The first two are already known objects. We study in detail the most interesting (and new) case: PB 9493-9494. Optical observations in direct imaging and in integral field spectrography confirm that this system is a pair of strongly interacting galaxies with starbursts and show the complex structure of an evolved but not merged encounter. Although such an evolution step is only intermediate, the brightest nucleus (PB 9494) may be on the verge of becoming an AGN. We discuss the peculiarities of this system with regard to optical versus far infrared behaviour, in connection with its special mode of selection. |
| Databáze: | OpenAIRE |
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