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

Query : 2003A&A...410..951P

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

Full paper

View the references in ADS

Number of rows : 64

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	NGC 1333	OpC	03 29 11	+31 18.6				~	1379	1
2	IC 348	OpC	03 44 32	+32 09.5				~	1343	1
3	RAFGL 5123	Y*O	04 31 34.07736	+18 08 04.9020				K3V/M3III	847	0
4	OMC 3	MoC	05 35 20.0	-05 01 00				~	258	1
5	HH 2	HH	05 36.4	-06 47				~	339	1
6	NAME Ophiuchus Molecular Cloud	SFR	16 28 06	-24 32.5				~	3478	1
7	2MASS J18290445+0109470	Y*O	18 29 04.4632315200	+01 09 46.859736636				~	3	0
8	2MASS J18292049+0108551	Y*O	18 29 20.4889366992	+01 08 55.006051704				K4-K5	4	0
9	ATO J277.3446+01.1757	Y*O	18 29 22.7208806640	+01 10 32.911664592	18.0		15.1	K7.5	10	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 31.1962681512	+01 05 51.318860748				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 33.0704323752	+01 17 16.480512312	17.9		15.0	G2.5	15	0
14	2MASS J18293358+0106599	Y*O	18 29 33.5857426536	+01 06 59.964411168				M2-M4e	3	0
15	2MASS J18293445+0106068	Y*O	18 29 34.4539222440	+01 06 06.778014804				~	4	0
16	2MASS J18293474+0105288	Y*O	18 29 34.7479971696	+01 05 28.787517672				K7-K8e	4	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	ATO J277.4228+01.1271	Y*O	18 29 41.4745809408	+01 07 37.875767772				K2.5	18	0
21	2MASS J18294723+0122346	Y*O	18 29 47.2327549368	+01 22 34.636921428	19.8		16.0	M2.5	8	0
22	NAME Serpens Cloud	SFR	18 29 49	+01 14.8				~	1060	2
23	V* V371 Ser	Or*	18 29 51.21240	+01 16 39.4860				~	113	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 53.6099956536	+01 17 01.730202216	19.7		16.6	M2.0	20	0
26	2MASS J18295536+0110340	Y*O	18 29 55.3611830520	+01 10 34.044079044				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 56.1832123056	+01 10 57.457509132				K5.0	9	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 57.4127920080	+01 14 50.197813116				M2.0	17	0
33	HD 170545B	Y*O	18 29 57.5757576552	+01 10 47.048389284	9.82	9.58		A1-A8V-IIIe	10	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 57.6615650088	+01 10 53.561414136	8.617	8.470	8.96	A1-A3Ve	17	0
37	IRAS 18274+0112	Y*O	18 29 57.73680	+01 14 05.6940				M4:	138	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				~	60	3
40	2MASS J18295820+0115216	Y*O	18 29 58.2037073472	+01 15 21.610474308				K7.0	39	0
41	2MASS J18295830+0120270	Y*O	18 29 58.3024268856	+01 20 26.906751060				~	4	0
42	GCNM 114	*	18 29 58.8	+01 13 04				~	5	0
43	CK 8	TT*	18 29 59.2453548960	+01 14 07.611180936	19.7		16.9	K7.5	30	0
44	NAME SERPENS SMM 3	smm	18 29 59.7	+01 14 00				~	95	1
45	HH 455	HH	18 30	+01.3				~	5	1
46	2MASS J18300065+0113402	Y*O	18 30 00.6502197504	+01 13 40.174218912				M0.5	26	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 03.4139489400	+01 16 19.094575296	18.9		15.0	M0.0	43	0
49	[GFM2007] 70	X	18 30 04.62	+01 22 34.1				~	6	0
50	2MASS J18300610+0106170	Y*O	18 30 06.1030207776	+01 06 16.939699380	19.0		16.5	M1.0	13	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 08.2020124512	+01 05 51.011216592				M4-M5e	4	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 18.1870131528	+01 14 16.733300676				M0.0	15	0
57	2MASS J18302190+0121076	Y*O	18 30 21.90984	+01 21 07.6500				M2-M4e	3	0
58	2MASS J18302240+0120439	Y*O	18 30 22.4033066856	+01 20 43.873119204				M1.0	12	0
59	2MASS J18302343+0105045	Y*O	18 30 23.4360938784	+01 05 04.534833660				M4.5	12	0
60	[P2003] J183025.9+010928	X	18 30 26.13	+01 09 25.7				~	2	0
61	ATO J277.6472+01.0993	Y*O	18 30 35.3330802744	+01 05 57.593826348				K6-K7e	5	0
62	2MASS J18303742+0117581	Y*O	18 30 37.4237916912	+01 17 58.156944864				K0	4	0
63	2MASS J18303955+0118029	Y*O	18 30 39.5575608768	+01 18 02.967824592				K4-K5	4	0
64	[P2003] J183040.2+011020	X	18 30 40.22	+01 10 14.9				~	2	0

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