1998A&A...338..923P

Query : 1998A&A...338..923P

1998A&A...338..923P - Astronomy and Astrophysics, volume 338923-932 (1998/10-3)

SVS 16: the most X-ray luminous young stellar object.

PREIBISCH T., NEUHAEUSER R. and STANKE T.

Abstract (from CDS):

We present new infrared and X-ray data on the optically invisible infrared source SVS 16 in the NGC 1333 star forming region. We show that SVS 16 is a binary with a separation of 1". The infrared spectrum displays photospheric atomic and CO absorption lines, and thus shows that SVS 16 is a highly obscured (AV∼26mag) low mass young stellar object. Our infrared data allow us to derive basic stellar parameters of SVS 16. We find that the binary system probably consists of two M-type pre-main sequence stars, which seem to be younger than a few 105yrs. Our new ROSAT PSPC data confirm the previous detection with the ROSAT HRI and show that SVS 16 has an extremely high quiescent X-ray luminosity of about 2x1032erg/sec in the 0.1-2.4keV band, making it the young stellar object with the brightest quiescent X-ray emission ever detected. We discuss the origin of the strong X-ray emission.

Abstract Copyright: ∼

Journal keyword(s): stars: pre-main sequence - stars: binaries: visual - stars: individual: SVS 16 (NGC 1333) - infrared: stars - X-rays: stars

Nomenclature: Fig.7: [PNS98] XP N (Nos 1-2). Table 3: [SVS76] NGC 1333 NNW (Nos 16E, 16W).

Simbad objects: 21

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Number of rows : 21
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 EM* LkHA 351 Or* 03 28 46.1912591184 +31 16 38.570613600           M3.0 39 0
2 2MASS J03285101+3118184 Or* 03 28 51.0207820727 +31 18 18.523426244           M4.5 59 0
3 IRAS 03258+3104 Y*O 03 28 55.30 +31 14 27.8           ~ 173 1
4 [JCC87] IRAS 2A Y*O 03 28 55.55 +31 14 36.7           ~ 513 3
5 BD+30 547 Y*O 03 28 57.2114503248 +31 14 19.076151444   10.73 9.98 9.1   G4V 117 1
6 NAME ASR 106A * 03 28 59.220 +31 15 49.06           ~ 6 0
7 NAME ASR 106B Y*O 03 28 59.300 +31 15 49.10           ~ 6 0
8 ASR 106 Y*O 03 28 59.30640 +31 15 48.5172           K2.0 61 0
9 ASR 51 Or* 03 29 00.3122342640 +31 13 38.597433600           M2.5V 39 0
10 ASR 2 Or* 03 29 02.8902198504 +31 16 00.953186124           M2.5V 26 0
11 V* V512 Per Or* 03 29 03.7578170808 +31 16 03.947525688           M3.5 419 0
12 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
13 HD 22403 PM* 03 37 11.0381580962 +25 59 27.954176922       6.9   G4 128 0
14 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
15 IRAS 13349+2438 Sy1 13 37 18.7199358192 +24 23 03.319883484     15.0     ~ 410 0
16 YLW 15 Y*O 16 27 26.906 -24 40 50.81           ~ 281 1
17 Elia 2-33 Y*O 16 27 30.18024 -24 27 43.3656           M2 125 1
18 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
19 NAME Corona Australis Cloud MoC 19 01 51 -36 58.9           ~ 554 0
20 [PNS98] XP 1 X ~ ~           ~ 1 0
21 [PNS98] XP 2 X ~ ~           ~ 1 0

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