2017A&A...597A.100M


Query : 2017A&A...597A.100M

2017A&A...597A.100M - Astronomy and Astrophysics, volume 597A, 100-100 (2017/1-1)

The Phoenix galaxy as seen by NuSTAR.

MASINI A., COMASTRI A., PUCCETTI S., BALOKOVIC M., GANDHI P., GUAINAZZI M., BAUER F.E., BOGGS S.E., BOORMAN P.G., BRIGHTMAN M., CHRISTENSEN F.E., CRAIG W.W., FARRAH D., HAILEY C.J., HARRISON F.A., KOSS M.J., LAMASSA S.M., RICCI C., STERN D., WALTON D.J. and ZHANG W.W.

Abstract (from CDS):

Aims. We study the long-term variability of the well-known Seyfert 2 galaxy Mrk 1210 (also known as UGC 4203, or the Phoenix galaxy).
Methods. The source was observed by many X-ray facilities in the last 20yr. Here we present a NuSTAR observation and put the results in the context of previously published observations.
Results. NuSTAR observed Mrk 1210 in 2012 for 15.4ks. The source showed Compton-thin obscuration similar to that observed by Chandra, Suzaku, BeppoSAX and XMM-Newton over the past two decades, but different from the first observation by ASCA in 1995, in which the active nucleus was caught in a low flux state or was obscured by Compton-thick matter with a reflection-dominated spectrum. Thanks to the high-quality hard X-ray spectrum obtained with NuSTAR and exploiting the long-term spectral coverage spanning 16.9yr, we can precisely disentangle the transmission and reflection components and put constraints on both the intrinsic long-term variability and hidden nucleus scenarios. In the former case, the distance between the reflector and the source must be at least ∼2pc, while in the latter the eclipsing cloud may be identified with a water maser-emitting clump.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: active - galaxies: Seyfert - X-rays: galaxies

Simbad objects: 6

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Number of rows : 6
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 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1687 2
2 Mrk 1210 Sy2 08 04 05.8608218112 +05 06 49.823376120   14.55 13.7     ~ 289 2
3 NGC 2992 Sy2 09 45 42.045 -14 19 34.90 13.54 13.14 12.18 12.6 12.2 ~ 850 3
4 NGC 6300 Sy2 17 16 59.5418094960 -62 49 13.946588832   10.88 13.08 9.44 10.2 ~ 411 0
5 NGC 7582 GiP 23 18 23.621 -42 22 14.06 11.62 10.92 10.62     ~ 872 2
6 NGC 7674 Sy2 23 27 56.6973043968 +08 46 44.253707772 13.84 13.92 13.23 12.64   ~ 677 4

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2023.02.04-09:10:41

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