2005A&A...436..653M


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.30CEST18:49:24

2005A&A...436..653M - Astronomy and Astrophysics, volume 436, 653-659 (2005/6-3)

Properties of galactic B[e] supergiants. IV. Hen 3-298 and Hen 3-303.

MIROSHNICHENKO A.S., BJORKMAN K.S., GROSSO M., HINKLE K., LEVATO H. and MARANG F.

Abstract (from CDS):

We present the results of optical and near-IR spectroscopic and near-IR photometric observations of the emission-line stars Hen 3-298 and Hen 3-303. Strong emission in the Hα line is found in both objects. The presence of Fe ii and [O I] emission lines in the spectrum of Hen 3-298 indicates that it is a B[e] star. The double-peaked CO line profiles, found in the infrared spectrum of Hen 3-298, along with the optical line profiles suggest that the star is surrounded by a rotating circumstellar disc. Both objects also show infrared excesses, similar to those of B[e] stars. The radial velocities of the absorption and emission lines as well as a high reddening level suggest that the objects are located in the Norma spiral arm at a distance of 3-4.5kpc. We estimated a luminosity of logL/L∼5.1 and a spectral type of no earlier than B3 for Hen 3-298. Hen 3-303 seems to be a less luminous B-type object (logL/L∼4.3), located in the same spiral arm.

Abstract Copyright:

Journal keyword(s): stars: emission-line, B[e] - stars: individual: Hen 3-298 - stars: individual: Hen 3-303 - techniques: spectroscopic - techniques: photometric - circumstellar matter

Simbad objects: 18

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Number of rows : 18

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO S 78 ClG 00 47 30 -48 14.6           ~ 5 0
2 ACO S 160 ClG 01 30 11 -32 54.5           ~ 7 0
3 V* MO Cam Be* 03 58 59.4436379432 +56 11 12.626367652 13.618 11.97 11.26     Be 28 0
4 V* CI Cam HXB 04 19 42.1353986687 +55 59 57.708146070 12.13 12.41 11.77 10.79 9.99 B0/2I[e] 225 0
5 CD-24 5721 Em* 07 39 06.1600084175 -24 45 04.947568695 10.84 11.42 10.94 10.79   B[e] 29 0
6 WRAY 15-406 Em* 09 36 44.2096715780 -53 28 01.344715143     11.4     B:e 13 0
7 WRAY 15-413 Em* 09 38 34.5577262146 -54 20 14.528411917   15.7 14.50     ~ 10 0
8 2MASS J09383462-5420260 IR 09 38 34.6347206838 -54 20 26.043422936   16.8 14.9     ~ 1 0
9 HD 85567 Be* 09 50 28.5375203189 -60 58 02.950579275 8.16 8.67 8.57     B5Vne 78 0
10 NAME Nor Arm PoG 16 00 -50.0           ~ 344 0
11 CPD-52 9243 Em* 16 07 02.0295845997 -53 03 45.416876395 12.36 11.84 10.22 9.87   B3Ieq 53 0
12 HD 327083 s*b 17 15 15.3714469957 -40 20 06.793634106 12.07 11.44 10.00 9.64   B6Ieq 53 0
13 CD-38 11837 Ae* 17 24 44.7035367553 -38 43 51.460940268 11.05 11.37 10.62 10.46   B1Ve 32 2
14 V* RY Sct Be* 18 25 31.4772031860 -12 41 24.196044092 10.25 10.38 9.12 9.46   O9.7Ibep 284 1
15 EM* MWC 300 Ae* 18 29 25.6915000349 -06 04 37.289920628 12.55 12.67 13.795     B1Ia+[e] 127 0
16 EM* MWC 623 ** 19 56 31.5416098584 +31 06 20.123592142   11.98 10.92     K2Ib/II+B4III[e] 63 0
17 EM* MWC 342 Em* 20 23 03.6174326238 +39 29 49.919006537 11.62 11.5 10.6     B[e] 73 1
18 EM* MWC 657 Be* 22 42 41.8291884368 +60 24 00.646735968           Be 28 0

    Equat.    Gal    SGal    Ecl

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2020.09.30-18:49:24

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