A multiwavelength investigation of the merging galaxy HCG 95C

M. Rodrigue, A. Schultz, J. Thompson, T. Colegrove, L. D. Spight, M. Disanti, Uwe - Fink, W. Grundy, K. Fricke, P. Papaderos

Research output: Contribution to journalArticle

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Abstract

The compact group HCG 95 consists of four galaxies in which two of the members, HCG 95a and HCG 95c, are interacting. The morphology suggests the interaction is well evolved with the Northern tidal arm of HCG 95c overlapping the Eastern edge of HCG 95a. A linear bridge connecting the two galaxies hints at nuclear activity within HCG 95c. Our color indices indicate an older stellar population for both HCG 95a and HCG 95c, with the exception of the Northern tidal arm of HCG 95c. Long slit spectra of HCG 95a exhibits red-shifted H-alpha +[N II] and [S II] emission lines indicative of a LINER-type AGN. Spatial profiles indicate non-nuclear starburst activity triggered by tidal forces, while the nuclear spectrum indicates nonthermal activity. IUE observations of HCG 95c exhibit a featureless continuum with a transient outburst captured in one IUE observation which shows characteristic galactic emissions of red-shifted N V (1240 Å) and C IV (1550 Å). These results suggest that HCG 95c is in an early stage of merging with HCG 95a.

Original languageEnglish (US)
Pages (from-to)2362-2367
Number of pages6
JournalAstronomical Journal
Volume109
Issue number6
StatePublished - Jun 1995

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IUE
galaxies
outburst
slits
continuums
color
profiles
interactions
index

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Rodrigue, M., Schultz, A., Thompson, J., Colegrove, T., Spight, L. D., Disanti, M., ... Papaderos, P. (1995). A multiwavelength investigation of the merging galaxy HCG 95C. Astronomical Journal, 109(6), 2362-2367.

A multiwavelength investigation of the merging galaxy HCG 95C. / Rodrigue, M.; Schultz, A.; Thompson, J.; Colegrove, T.; Spight, L. D.; Disanti, M.; Fink, Uwe -; Grundy, W.; Fricke, K.; Papaderos, P.

In: Astronomical Journal, Vol. 109, No. 6, 06.1995, p. 2362-2367.

Research output: Contribution to journalArticle

Rodrigue, M, Schultz, A, Thompson, J, Colegrove, T, Spight, LD, Disanti, M, Fink, U, Grundy, W, Fricke, K & Papaderos, P 1995, 'A multiwavelength investigation of the merging galaxy HCG 95C', Astronomical Journal, vol. 109, no. 6, pp. 2362-2367.
Rodrigue M, Schultz A, Thompson J, Colegrove T, Spight LD, Disanti M et al. A multiwavelength investigation of the merging galaxy HCG 95C. Astronomical Journal. 1995 Jun;109(6):2362-2367.
Rodrigue, M. ; Schultz, A. ; Thompson, J. ; Colegrove, T. ; Spight, L. D. ; Disanti, M. ; Fink, Uwe - ; Grundy, W. ; Fricke, K. ; Papaderos, P. / A multiwavelength investigation of the merging galaxy HCG 95C. In: Astronomical Journal. 1995 ; Vol. 109, No. 6. pp. 2362-2367.
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N2 - The compact group HCG 95 consists of four galaxies in which two of the members, HCG 95a and HCG 95c, are interacting. The morphology suggests the interaction is well evolved with the Northern tidal arm of HCG 95c overlapping the Eastern edge of HCG 95a. A linear bridge connecting the two galaxies hints at nuclear activity within HCG 95c. Our color indices indicate an older stellar population for both HCG 95a and HCG 95c, with the exception of the Northern tidal arm of HCG 95c. Long slit spectra of HCG 95a exhibits red-shifted H-alpha +[N II] and [S II] emission lines indicative of a LINER-type AGN. Spatial profiles indicate non-nuclear starburst activity triggered by tidal forces, while the nuclear spectrum indicates nonthermal activity. IUE observations of HCG 95c exhibit a featureless continuum with a transient outburst captured in one IUE observation which shows characteristic galactic emissions of red-shifted N V (1240 Å) and C IV (1550 Å). These results suggest that HCG 95c is in an early stage of merging with HCG 95a.

AB - The compact group HCG 95 consists of four galaxies in which two of the members, HCG 95a and HCG 95c, are interacting. The morphology suggests the interaction is well evolved with the Northern tidal arm of HCG 95c overlapping the Eastern edge of HCG 95a. A linear bridge connecting the two galaxies hints at nuclear activity within HCG 95c. Our color indices indicate an older stellar population for both HCG 95a and HCG 95c, with the exception of the Northern tidal arm of HCG 95c. Long slit spectra of HCG 95a exhibits red-shifted H-alpha +[N II] and [S II] emission lines indicative of a LINER-type AGN. Spatial profiles indicate non-nuclear starburst activity triggered by tidal forces, while the nuclear spectrum indicates nonthermal activity. IUE observations of HCG 95c exhibit a featureless continuum with a transient outburst captured in one IUE observation which shows characteristic galactic emissions of red-shifted N V (1240 Å) and C IV (1550 Å). These results suggest that HCG 95c is in an early stage of merging with HCG 95a.

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