2009A&A...508..321S


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.16CEST19:56:08

2009A&A...508..321S - Astronomy and Astrophysics, volume 508, 321-327 (2009/12-2)

The Chandra X-ray view of the power sources in Cepheus A.

SCHNEIDER P.C., GUENTHER H.M. and SCHMITT J.H.M.M.

Abstract (from CDS):

The central part of the massive star-forming region Cepheus A contains several radio sources which indicates multiple outflow phenomena, yet the driving sources of the individual outflows have not been identified. We present a high-resolution Chandra observation of this region that shows the presence of bright X-ray sources with luminosities of LX>1030erg/s, consistent with active pre-main sequence stars, while the strong absorption hampers the detection of less luminous objects. A new source has been discovered located on the line connecting H2 emission regions at the eastern and western parts of Cepheus A. This source could be the driving source of HH 168. We present a scenario relating the observed X-ray and radio emission.

Abstract Copyright:

Journal keyword(s): stars: pre-main sequence - stars: winds, outflows - X-rays: stars - stars: individual: Cep A:HW 2 - ISM: individual objects: Cep A East

Nomenclature: Table 1: [SGS2009] XN (Nos X1-X7).

Simbad objects: 32

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Number of rows : 32

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 V* DG Tau Or* 04 27 04.6913654419 +26 06 16.041555299 13.57 13.97 10.50 12.28   K6Ve 952 1
2 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1509 1
3 M 42 HII 05 35 17.3 -05 23 28           ~ 3794 0
4 NAME Cepheus A East SFR 22 54.3 +61 46           ~ 65 0
5 [HW84] 1a Rad 22 56 16.4 +62 01 39           ~ 12 0
6 [HW84] 1b Rad 22 56 16.6 +62 01 42           ~ 13 0
7 [HW84] 3a Rad 22 56 17.1 +62 01 44           ~ 15 0
8 [PTU2009] h14 X 22 56 17.40 +62 01 58.6           ~ 2 0
9 [LHS84] IRS 6c IR 22 56 17.5 +62 01 51           ~ 4 0
10 [HW84] 8 Rad 22 56 17.68 +62 01 47.2           ~ 12 0
11 [HW84] 3b Rad 22 56 17.7 +62 01 45           ~ 19 0
12 NAME Cep A HW 2 Y*O 22 56 17.9 +62 01 49           B0.5 202 0
13 NAME Cepheus A SFR 22 56 17.9 +62 01 49           ~ 708 2
14 [PTU2009] h11 Rad 22 56 18.0 +62 01 46           ~ 26 0
15 HH 168 HH 22 56 18.0 +62 01 47           ~ 89 0
16 [HW84] 3 Rad 22 56 18 +62 01.8           ~ 10 0
17 [PTU2009] h10 X 22 56 18.10 +62 01 43.2           ~ 2 0
18 [HW84] 3d Rad 22 56 18.2 +62 01 46           ~ 29 0
19 [HW84] 4 Rad 22 56 18.5 +62 01 56           ~ 16 0
20 NAME Cep A HW 9 Rad 22 56 18.64 +62 01 48.0           ~ 19 0
21 IRAS 22543+6145 HII 22 56 19.1 +62 01 57           ~ 71 0
22 [HW84] 5 Rad 22 56 19.7 +62 01 59           ~ 14 0
23 [HW84] 7b Rad 22 56 20 +62 01.6           ~ 10 0
24 [HW84] 7 Rad 22 56 20.0 +62 01 39           ~ 6 0
25 [HW84] 7a Rad 22 56 20.2 +62 01 40           ~ 14 0
26 GPFW 2 IR 22 56 20.3 +62 01 42           ~ 2 0
27 2MASS J22562094+6202045 Y*O 22 56 20.942 +62 02 04.56           ~ 4 0
28 [HW84] 7c Rad 22 56 21.3 +62 01 38           ~ 11 0
29 [HW84] 7d HII 22 56 21.9 +62 01 36           ~ 11 0
30 2MASX J22562212+6202024 IR 22 56 22.127 +62 02 02.46           ~ 4 0
31 HH 169 HH 22 56 34.8 +62 02 36           ~ 5 0
32 HH 174 HH 22 56 58.5 +62 01 42           ~ 4 0

    Equat.    Gal    SGal    Ecl

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2021.05.16-19:56:08

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