2009ApJ...696..766S

Query : 2009ApJ...696..766S

2009ApJ...696..766S - Astrophys. J., 696, 766-774 (2009/May-1)

X-ray emission from the FU Orionis star V1735 Cygni.

SKINNER S.L., SOKAL K.R., GUDEL M. and BRIGGS K.R.

Abstract (from CDS):

The variable star V1735 Cyg (=Elias 1-12) lies in the IC 5146 dark cloud and is a member of the class of FU Orionis objects whose dramatic optical brightenings are thought to be linked to episodic accretion. We report the first X-ray detections of V1735 Cyg and a deeply embedded class I protostar lying 24'' to its northeast. X-ray spectra obtained with EPIC on XMM-Newton reveal very high-temperature plasma (kT > 5 keV) in both objects, but no large flares. Such hard X-ray emission is not anticipated from accretion shocks and is a signature of magnetic processes. We place these new results into the context of what is presently known about the X-ray properties of FU Orionis stars and other accreting young stellar objects.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: V1735 Cyg = Elias 1-12 - stars: pre-main sequence - X-rays: stars

Simbad objects: 20

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Number of rows : 20
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 Barnard 218 DNe 04 28.1 +26 16           ~ 43 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
3 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
4 V* FU Ori Or* 05 45 22.3647842544 +09 04 12.291320064   10.72 9.60     F0Iab 888 1
5 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
6 * rho Oph ** 16 25 35.11766 -23 26 49.8150 4.30 4.85 4.63 4.27 3.96 B2IV+B2V 670 0
7 YLW 15 Y*O 16 27 26.906 -24 40 50.81           ~ 281 1
8 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
9 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1
10 NAME Corona Australis Cloud MoC 19 01 51 -36 58.9           ~ 554 0
11 CHLT 14 Y*O 19 01 56.41 -36 57 28.0           ~ 121 1
12 V* V1515 Cyg Or* 20 23 48.0158573016 +42 12 25.781279076   15.26 13.39 12.03   G0/G2Ib 260 0
13 EM* LkHA 190 Or* 20 58 53.7335347296 +44 15 28.388727720   14.26 12.33 12.13   F7/G3I/IIe 530 0
14 V* V1551 Cyg LP* 21 07 29.7214165344 +46 19 19.821376884           ~ 7 0
15 V* V1735 Cyg Or* 21 47 20.6628414360 +47 32 03.857457372           ~ 170 0
16 2MASS J21472120+4732261 Y*? 21 47 21.21 +47 32 26.2           ~ 4 0
17 [HHJ2008] 33 Y*? 21 47 22.61 +47 32 05.8           ~ 3 0
18 [HHJ2008] 34 Y*? 21 47 22.77 +47 32 14.9           ~ 11 0
19 BD+46 3474 ** 21 53 28.849152 +47 15 59.78412 10.27 10.374 9.632 9.416   B1V 59 0
20 IC 5146 OpC 21 53 29.3 +47 14 46           ~ 507 2

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