2006A&A...455.1001M


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.06CEST08:58:55

2006A&A...455.1001M - Astronomy and Astrophysics, volume 455, 1001-1008 (2006/9-1)

An outbursting protostar of the FU Orionis type in the Cygnus OB7 molecular cloud.

MOVSESSIAN T.A., KHANZADYAN T., ASPIN C., MAGAKIAN T.Y., BECK T., MOISEEV A., SMITH M.D. and NIKOGOSSIAN E.H.

Abstract (from CDS):

To follow the early evolution of stars we need to understand how young stars accrete and eject mass. It is generally assumed that the FU Orionis phenomenon is related to the variations in the disk accretion, but many questions remain still open, in particular because of the rarity of FU Ori type stars. We explore here the characteristics of the outburst and of the environment of one new object, discovered recently in the active star formation region containing RNO 127, within the Cygnus OB7 dark cloud complex. We present an extensive optical and near-infrared study of a new candidate of FU Orionis object, including its direct imaging, spectroscopy and scanning Fabry-Perot interferometry. The source, associated with the variable reflection nebula, underwent prodigious outburst. The ``Braid'' nebula, which appeared in 2000, as is indicated by its name, consists of two intertwined features, illuminated by the outburst. Subsequent NIR observations revealed the bright source, which was not visible on 2MASS images, and its estimated brightening was more than 4mag. Optical and infrared spectral data show features, which are necessary for the system to be referred to as a FUor object. The bipolar optical flow directed by the axis of nebula also was found. Various estimates give the November/December 1999 as the most probable date for the eruption.

Abstract Copyright:

Journal keyword(s): ISM: jets and outflows - ISM: clouds

Simbad objects: 19

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Number of rows : 19

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 [SA98] PP 13S* * 04 10 40.8 +38 07 55           ~ 9 0
2 RAFGL 5163 Y*O 05 40 27.45024 -07 27 30.0564           ~ 127 1
3 V* FU Ori Or* 05 45 22.3650208559 +09 04 12.296285806   10.72 9.60     F0Iab 734 1
4 V* V912 Mon Or* 06 40 59.3031035066 +09 35 52.395907208         16.50 GIII 26 0
5 V* Z CMa Ae* 07 03 43.1588002461 -11 33 06.230351311 10.51 9.99 8.80     B5/8eq+F5/7 537 3
6 V* V646 Pup Or* 07 50 35.5923632458 -33 06 23.904713538   13.96 12.65 12.04   ~ 64 0
7 IRAS 16289-4449 Or* 16 32 32.19264 -44 55 30.6552       15.95   ~ 121 1
8 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1942 0
9 HH 629B HH 21 00 15.4 +52 29 22           ~ 2 0
10 HH 629A HH 21 00 16.7 +52 29 22           ~ 6 0
11 NAME Braid Nebula ISM 21 00 25.00 +52 30 15.2           ~ 17 0
12 HH 448 HH 21 00 31.8 +52 29 17           ~ 17 0
13 HH 635A HH 21 00 42.6 +52 31 42           ~ 4 0
14 HH 635B HH 21 00 52.7 +52 33 32           ~ 3 0
15 HH 635C HH 21 00 55.9 +52 33 51           ~ 4 0
16 HD 201076 * 21 05 43.9972960988 +47 48 16.973063761   7.40 7.45     A0V 20 0
17 Ass Cyg OB 7 As* 21 08 +47.6           ~ 199 0
18 HD 217086 Y*O 22 56 47.1887219290 +62 43 37.654789076 7.88 8.30 7.66 8.35   O7Vnn((f))z 245 0
19 NGC 7790 OpC 23 58 24 +61 12.5   9.18 8.5     ~ 249 0

    Equat.    Gal    SGal    Ecl

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2021.05.06-08:58:56

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