HII regions in interacting system Arp 86

We present an analysis of the metallicity and star formation activities of HII regions in the interacting system Arp 86, based on the first scientific observations using multi-object spectroscopy with the 2.16m telescope at the Xinglong Observing Station. We find that the oxygen abundance gradient in Arp 86 is flatter than that in normal disk galaxies, which confirms that gas inflows caused by tidal forces during encounters can flatten the metallicity distributions in galaxies. The companion galaxy NGC 7752 is currently experiencing a galaxy-wide starburst with a higher star formation rate surface density than the main galaxy NGC 7753, which can be explained in that the companion galaxy is more susceptible to the effects of interaction than the primary. We also find that the galaxy 2MASX J23470758+2926531 has similar abundance and star formation properties to NGC 7753, and may be a part of the Arp 86 system.

Cone search capability for table J/other/RAA/14.1393/table1 (Sample of observed HII regions)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/other/RAA/14.1393
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/14.1393
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/14.1393
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/other/RAA/14.1393
Provenance
Creator Zhou Z.-M.; Wu H.; Huang L.; Li H.-B.; Zhou Z.-Z.; Jia J.-J.; Lam M.-I.,Zhu Y.-N.
Publisher CDS
Publication Year 2015
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Interdisciplinary Astronomy; Interstellar medium; Natural Sciences; Observational Astronomy; Physics