1998A&A...333..877G


Query : 1998A&A...333..877G

1998A&A...333..877G - Astronomy and Astrophysics, volume 333, 877-881 (1998/5-3)

NGC 5252 - a Liner undercover.

GONCALVES A.C., VERON P. and VERON-CETTY M.-P.

Abstract (from CDS):

Ground based long slit spectroscopic observations of the nuclear region of NGC 5252, and Hubble Space Telescope (HST) Faint Object Spectrograph (FOS) spectra of the nucleus and two bright knots located 0.36" NE and 0.31" SW from it, show that the nuclear region exhibits the characteristics of a Liner with exceptionally strong Oi emission, all lines being broad (FWHM∼1100km/s), while the gas outside the nucleus has a typical Seyfert 2 spectrum with relatively narrow lines (∼200-300km/s). We suggest that all the emitting gas is photoionized by the hidden non-thermal nuclear source detected through near-infrared (Kotilainen & Prieto, 1995A&A...295..646K) and X-ray (Cappi et al., 1996ApJ...456..141C) observations, the ionizing continuum, in the case of the central Liner, being ``filtered'' by a matter-bounded highly ionized cloud, hidden from our view by the same material obscuring the central continuum source.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: nuclei - galaxies: Seyfert - galaxies: individual: NGC 5252

Simbad objects: 5

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Number of rows : 5
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 M 77 GiP 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4322 2
2 NGC 4365 GiG 12 24 28.228 +07 19 03.07   11.5       ~ 816 0
3 MCG-03-34-064 Sy2 13 22 24.4583154360 -16 43 42.481822404   14   13.16   ~ 282 2
4 NGC 5252 Sy2 13 38 15.8707724328 +04 32 33.521265600   15.21 14.21     ~ 448 0
5 NGC 5982 LIN 15 38 39.778 +59 21 21.21   12.4       ~ 284 0

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2022.05.23-11:24:33

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