2001A&A...374..932G


Query : 2001A&A...374..932G

2001A&A...374..932G - Astronomy and Astrophysics, volume 374, 932-935 (2001/8-2)

The nuclear starburst activity in the Seyfert 2 galaxy NGC 7679.

GU Q.S., HUANG J.H., DE DIEGO J.A., DULTZIN-HACYAN D., LEI S.-J. and BENITEZ E.

Abstract (from CDS):

We present our recent spectrophotometric results of the infrared luminous Seyfert 2 galaxy NGC 7679. We find compelling evidence for the presence of a recent nuclear starburst, revealed by the observations of a) the spectral features of high order Balmer absorption lines, b) the weak equivalent widths for CaIIK λ3933, CN λ4200, G-band λ4300 and MgIb λ5173, and c) the suggested UV stellar wind resonance lines (N V λ1240, Si IV λ1400 and C IV λ1550) in the IUE spectrum. Using the simple stellar population synthesis model, we find that in the nuclear 2''x2'' region, the contributions from the old, intermediate and young components are 21.7%, 42.9% and 35.4%, respectively. These nuclear starburst activities might have been triggered by the close encounter with NGC 7682, as suggested by recent numerical simulations.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: Seyfert - galaxies: starburst - galaxies: stellar content

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 5135 Sy2 13 25 44.059 -29 50 01.24   12.58 13.35 11.53 12.2 ~ 457 1
2 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 766 0
3 NGC 7679 Sy2 23 28 46.6613717400 +03 30 41.013578196   13.2       ~ 250 1
4 NGC 7682 Sy2 23 29 03.9181335984 +03 31 59.921415444   14.3       ~ 220 0

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2022.08.13-21:19:10

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