2003A&A...410..951P


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET19:21:29

2003A&A...410..951P - Astronomy and Astrophysics, volume 410, 951-959 (2003/11-2)

XMM-Newton study of the Serpens star-forming region.

PREIBISCH T.

Abstract (from CDS):

We analyze a XMM-Newton X-ray observation of the Serpens dark cloud with a total MOS-equivalent exposure time of 57ksec. We find 45 individual X-ray sources. None of the class 0 protostars, only one of the class I protostars, and two of the flat-spectrum objects in the region are detected in X-rays. The optically invisible flat-spectrum source EC 95, a very young intermediate mass object, is the strongest X-ray source in the Serpens cloud. The analysis of its X-ray spectrum shows that the hydrogen column density towards EC 95 is considerably lower than expected from the extinction determined from near-IR spectroscopy and photometry. Possible reasons for this inconsistency are discussed.

Abstract Copyright:

Journal keyword(s): open clusters and associations: individual: Serpens dark cloud - stars: formation - stars: coronae - stars: low-mass, brown dwarfs - stars: pre-main sequence - X-rays: stars

Nomenclature: Table 1: [P2003] JHHMMSS.s+DDMMSS N=45.

CDS comments: Table 1 : STGM 8 = STGM 182735.3+010959.

Simbad objects: 64

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Number of rows : 64

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 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1253 1
2 IC 348 OpC 03 44 34 +32 09.8           ~ 1247 1
3 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 818 0
4 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 230 1
5 HH 2 HH 05 36.4 -06 47           ~ 335 1
6 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3138 1
7 2MASS J18290445+0109470 Y*O 18 29 04.460 +01 09 47.02           ~ 3 0
8 2MASS J18292049+0108551 Y*O 18 29 20.4893030560 +01 08 55.007223219           K4-K5 3 0
9 2MASS J18292272+0110329 Y*O 18 29 22.7210572376 +01 10 32.914622310   18.0   15.1   K7.5 8 0
10 [P2003] J182926.5+011802 X 18 29 26.53 +01 18 03.3           ~ 2 0
11 2MASS J18293119+0105515 Y*O 18 29 31.1967921757 +01 05 51.336919206           M3e 3 0
12 NAME HH 106-107 ? 18 29 31.3 +01 18 40           ~ 6 0
13 [SVS76] Ser 14 Y*O 18 29 33.0699960697 +01 17 16.469185194   17.9   15.0   G2.5 14 0
14 2MASS J18293358+0106599 Y*O 18 29 33.5838798227 +01 06 59.942621307           M2-M4e 3 0
15 2MASS J18293445+0106068 Y*O 18 29 34.4536484326 +01 06 06.771975515           ~ 3 0
16 2MASS J18293474+0105288 Y*O 18 29 34.7482174255 +01 05 28.784187899           K7-K8e 3 0
17 [P2003] J182935.1+012338 X 18 29 35.14 +01 23 39.0           ~ 3 0
18 HH 460 HH 18 29 38.6 +01 18 24           ~ 11 1
19 [P2003] J182939.7+011754 X 18 29 39.7 +01 17 54           ~ 2 0
20 2MASS J18294147+0107378 Y*O 18 29 41.4745026391 +01 07 37.869168699           K2.5 15 0
21 2MASS J18294723+0122346 Y*O 18 29 47.2327165702 +01 22 34.631996337   19.8   16.0   M2.5 7 0
22 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 959 2
23 V* V371 Ser Or* 18 29 51.21240 +01 16 39.4860           ~ 96 1
24 2MASS J18295317+0112275 BD* 18 29 53.176 +01 12 27.55           L 14 0
25 2MASS J18295360+0117017 Y*O 18 29 53.6097296564 +01 17 01.723303599   19.7   16.6   M2.0 19 0
26 2MASS J18295536+0110340 Y*O 18 29 55.3660225875 +01 10 33.904046562           M5.0 8 0
27 [P2003] J182955.7+010024 X 18 29 55.7 +01 00 24           ~ 1 0
28 2MASS J18295571+0114315 Y*O 18 29 55.711 +01 14 31.50           ~ 38 0
29 NAME Ser Cloud Core Cld 18 29 56 +01 14.8           ~ 19 0
30 2MASS J18295618+0110574 Y*O 18 29 56.1834736704 +01 10 57.458848349           K5.0 8 0
31 2MASS J18295667+0112393 Y*O 18 29 56.674 +01 12 39.32           ~ 19 0
32 2MASS J18295741+0114503 Y*O 18 29 57.4123268031 +01 14 50.191039065           M2.0 16 0
33 HD 170545B Y*O 18 29 57.5759105889 +01 10 47.047427369   9.82 9.58     A1-A8V-IIIe 9 0
34 2MASS J18295760+0113004 Y*O 18 29 57.602 +01 13 00.42           ~ 35 3
35 HD 170545 ** 18 29 57.66 +01 10 53.6           B9V 17 0
36 HD 170545A Y*O 18 29 57.6614831670 +01 10 53.606581241   8.617 8.470 8.96   A1-A3Ve 16 0
37 IRAS 18274+0112 Y*O 18 29 57.73680 +01 14 05.6940           M4: 137 2
38 2MASS J18295781+0115318 Y*O 18 29 57.816 +01 15 31.86           K2.0 21 0
39 2MASS J18295785+0112514 Y*O 18 29 57.858 +01 12 51.40           ~ 59 3
40 2MASS J18295820+0115216 Y*O 18 29 58.2037104611 +01 15 21.603460135           K7.0 38 0
41 2MASS J18295830+0120270 Y*O 18 29 58.3024465715 +01 20 26.901516312           ~ 4 0
42 GCNM 114 * 18 29 58.8 +01 13 04           ~ 5 0
43 CK 8 TT* 18 29 59.2453367145 +01 14 07.606895690   19.7   16.9   K7.5 28 0
44 NAME SERPENS SMM 3 smm 18 29 59.7 +01 14 00           ~ 86 1
45 HH 455 HH 18 30 +01.3           ~ 5 1
46 2MASS J18300065+0113402 Y*O 18 30 00.6479615718 +01 13 40.113500422           M0.5 25 0
47 2MASS J18300124+0115036 Y*O 18 30 01.245 +01 15 03.61           ~ 10 0
48 2MASS J18300341+0116191 Y*O 18 30 03.4139495304 +01 16 19.088787966   18.9   15.0   M0.0 41 0
49 [GFM2007] 70 X 18 30 04.62 +01 22 34.1           ~ 6 0
50 2MASS J18300610+0106170 Y*O 18 30 06.1029526156 +01 06 16.935486714   19.0   16.5   M1.0 12 0
51 [P2003] J183006.3+010104 X 18 30 06.3 +01 01 04           ~ 1 0
52 [P2003] J183006.7+011216 X 18 30 06.78 +01 12 10.0           ~ 3 0
53 2MASS J18300770+0112043 Y*O 18 30 07.708 +01 12 04.32           M2.5 15 0
54 2MASS J18300820+0105510 Y*O 18 30 08.2021348929 +01 05 51.006575893           M4-M5e 3 0
55 SSTc2d J183009.9+012440 X 18 30 09.86 +01 24 39.8           ~ 2 0
56 2MASS J18301818+0114167 Y*O 18 30 18.1871932645 +01 14 16.725773201           M0.0 14 0
57 2MASS J18302190+0121076 Y*O 18 30 21.91 +01 21 07.7           M2-M4e 3 0
58 2MASS J18302240+0120439 Y*O 18 30 22.4032466588 +01 20 43.872279492           M1.0 11 0
59 2MASS J18302343+0105045 Y*O 18 30 23.435 +01 05 04.57           M4.5 11 0
60 [P2003] J183025.9+010928 X 18 30 26.13 +01 09 25.7           ~ 2 0
61 2MASS J18303532+0105577 Y*O 18 30 35.3332278821 +01 05 57.594139731           K6-K7e 3 0
62 2MASS J18303742+0117581 Y*O 18 30 37.4238795901 +01 17 58.154934771           K0 3 0
63 2MASS J18303955+0118029 Y*O 18 30 39.5574802210 +01 18 02.966697754           K4-K5 3 0
64 [P2003] J183040.2+011020 X 18 30 40.22 +01 10 14.9           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2021.03.04-19:21:29

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