1999A&AS..139..105C


Query : 1999A&AS..139..105C

1999A&AS..139..105C - Astron. Astrophys., Suppl. Ser., 139, 105-133 (1999/October-1)

Photometric studies of some starburst galaxies.

CHITRE A. and JOSHI U.C.

Abstract (from CDS):

We present the results of a detailed morphological analysis of ten starburst galaxies selected from the Markarian catalog of uv-excess objects. CCD surface photometry of these galaxies was carried out based on observations made in B, V (Johnson) and R, I (Kron-Cousins) band passes. We present the radial variations of surface brightness, ellipticity, position angle and the colour indices for each galaxy obtained using ellipse fitting isophotal analysis. The residual images constructed for extracting the fine structure are also presented. A variety of morphological types are found to host the starburst phenomenon. The star formation activity is not confined to the nuclear region alone, but it also occurs at various locations in the galaxy and is seen as clumpy regions. The colour index and the residual images are used for deriving information about the sites of enhanced star formation activity and the triggers of the starburst. The luminosity profiles show an exponential behaviour in the outer region. The disk scale lengths and the half-light radii are derived. The contribution of the burst component has been estimated and the colours of the burst component are presented. Strong isophotal twisting is detected in all the S0 and E galaxies: Mrk 1002, Mrk 1308 and Mrk 14, in the sample. This is accompanied by boxiness in some cases, suggesting that a merger is responsible for the starburst activity in these galaxies. In case of isolated spirals, a bar or a central oval distortion appear to be the likely trigger for the starburst.

Abstract Copyright:

Journal keyword(s): galaxies: starburst - galaxies: photometry - galaxies: stucture

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 NGC 632 GiP 01 37 17.5654465512 +05 52 38.153863848   13.5       ~ 122 0
2 NGC 694 GiP 01 50 58.492 +21 59 51.18   13.9       ~ 103 1
3 Mrk 14 G 08 10 59.242 +72 47 40.10   15.09 14.67     ~ 37 0
4 NGC 2544 GiP 08 21 40.3293839976 +73 59 18.017003976   13.98 13.09     ~ 45 0
5 NGC 3773 H2G 11 38 12.967 +12 06 42.91   13.1       ~ 195 0
6 IC 745 AGN 11 54 12.2719925760 +00 08 11.823367524   14.59 14.19     ~ 124 1
7 NGC 4500 bCG 12 31 22.1642532648 +57 57 52.686175392   13.2       ~ 118 0
8 NGC 4779 H2G 12 53 50.863 +09 42 35.71   13.5       ~ 125 0
9 NGC 5014 rG 13 11 31.2417164616 +36 16 55.998720012   13.5       ~ 139 0
10 NGC 5534 EmG 14 17 40.2662736312 -07 25 02.573630076   13.6   13.4 12.7 ~ 85 0

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2022.12.04-08:49:07

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