2007ApJ...667..497M

Query : 2007ApJ...667..497M

2007ApJ...667..497M - Astrophys. J., 667, 497-504 (2007/September-3)

Toward understanding the B[e] phenomenon. I. Definition of the Galactic FS CMa stars.

MIROSHNICHENKO A.S.

Abstract (from CDS):

The B[e] phenomenon is defined as the simultaneous presence of low-excitation forbidden line emission and strong infrared excess in the spectra of early-type stars. It was discovered in our Galaxy 30 years ago in the course of the early exploration of the infrared sky and initially identified in 65 Galactic objects, of which nearly half remained unclassified. The phenomenon is associated with objects at different evolutionary stages, ranging from the pre-main-sequence to the planetary nebula stage. We review the studies of both the original 65 and subsequently identified Galactic stars with the B[e] phenomenon. A new classification is proposed for stars with the B[e] phenomenon based on the time of dust formation in their environments. Properties of the unclassified Galactic B[e] stars are analyzed. We propose that these objects are binary systems that are currently undergoing or have recently undergone a phase of rapid mass exchange, associated with a strong mass loss and dust formation. A new name, FS CMa stars, and classification criteria are proposed for the unclassified B[e] stars.

Abstract Copyright: ∼

Journal keyword(s): Stars: Circumstellar Matter - Stars: Early-Type - Stars: Emission-Line, Be

Simbad objects: 57

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Number of rows : 57
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LHA 115-S 6 s*b 00 46 55.0295765376 -73 08 34.136808252 12.14 13.02 12.91   12.52 B0/0.5[e] 84 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11147 1
3 EM* MWC 17 Sy* 01 47 38.4693522336 +60 41 57.308651520           B[e] 43 0
4 V* MO Cam Be* 03 58 59.4438030480 +56 11 12.624758052 13.618 11.97 11.26     Be 34 0
5 V* CI Cam HXB 04 19 42.1355996520 +55 59 57.706599192 12.13 12.41 11.77 10.79 9.99 B0/2I[e] 254 0
6 HD 34664 s*b 05 13 52.9937299920 -67 26 54.820789332 11.509 11.88 11.774 11.63 10.991 B0/0.5I[e] 95 0
7 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17433 0
8 EM* AS 119 TT* 06 09 25.5040515456 -09 38 49.182807588   13.28 12.36     B3IV[e] 21 1
9 EM* MWC 137 Ae* 06 18 45.5220873216 +15 16 52.244494608 12.89 13.30 13.759 11.67 10.31 sgB[e]d 245 1
10 HD 45677 Be* 06 28 17.4219710352 -13 03 11.128860972 7.86 8.52 8.50 8.11 8.01 B2IV/V[e] 330 0
11 EM* MWC 819 Em* 06 44 37.6690072032 +01 19 32.611712052   13 15.3     B[e] 46 2
12 HD 50138 Ae* 06 51 33.3989823840 -06 57 59.450772852 6.28 6.68 6.67     A1Ib/II 220 0
13 CD-24 5721 Em* 07 39 06.1599984144 -24 45 04.948772328 10.84 11.42 10.94 10.79   B[e] 36 0
14 * l Pup sg* 07 43 48.4696146486 -28 57 17.374357218 4.06 4.09 3.93 3.68 3.50 A4Iabe 191 0
15 CD-49 3441 Be* 08 14 20.4677690448 -50 09 46.380031992   10.36 10.34     B8e 20 0
16 Ve 7-27 Em* 08 51 59.6873334432 -46 18 07.278013188   14.87 13.88 14.59 12.96 ~ 46 1
17 Ve 6-21 Be* 08 56 36.488 -46 23 57.31   13.36 12.34     Be 20 0
18 WRAY 15-406 Em* 09 36 44.2100146392 -53 28 01.350852996     11.4     B:e 15 0
19 WRAY 15-413 LP? 09 38 34.5579420072 -54 20 14.523212580   15.7 14.50     B[e] 13 0
20 HD 85567 Be* 09 50 28.5375988920 -60 58 02.954048268 8.16 8.67 8.57     B5Vne 96 0
21 HD 87643 Or* 10 04 30.2839505304 -58 39 52.091224848 8.92 10.38 9.50 9.68   B3I[e] 148 0
22 CD-57 3107 LP? 10 15 21.9721722816 -57 51 42.738609492 12.27 11.72 10.15 9.78   M3 40 0
23 * eta Car Em* 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2439 0
24 THA 35-II-101 Be* 10 45 57.1303844952 -59 56 43.138118076 11.54 12.25 11.550     Bep 29 0
25 HD 94878 EB* 10 55 58.9149262296 -60 23 33.436864428 8.67 9.37 8.70 8.07   B0/2eq 154 0
26 WRAY 15-821 Em* 11 31 13.3979781672 -63 50 12.056876196   13.925 13.148 13.136   Be 7 0
27 THA 17-18 Be* 13 10 04.8535562112 -63 11 29.981336604       13.952   B0[e]+M2/3 43 0
28 CPD-52 9243 LP? 16 07 02.0298241344 -53 03 45.415519128 12.36 11.84 10.22 9.87   B3Ieq 58 0
29 PN Pe 2-9 Em* 16 24 57.3729744672 -48 43 40.160557992     17.0     ~ 20 3
30 WRAY 15-1520 Be* 16 38 28.6289672856 -45 23 41.453195244     13.3 13.14 12.00 Be 29 0
31 EM* AS 222 Be* 17 14 18.0009782328 -38 58 59.642143140   13.99 12.44 11.84   Be 16 0
32 HD 327083 s*b 17 15 15.3711774600 -40 20 06.792259560 12.07 11.44 10.00 9.64   B6Ieq 58 0
33 EM* AS 225 Be* 17 20 55.5371447304 -38 00 00.366018840   14.82 13.44 12.99   Be 13 0
34 CD-38 11837 Ae* 17 24 44.7035716704 -38 43 51.463262568 11.05 11.37 10.62 10.46   B1Ve 40 2
35 NGC 6572 PN 18 12 06.3181909152 +06 51 13.027935240   9.3 10.8     [WC] 753 0
36 EM* MWC 922 Be* 18 21 16.0519243728 -13 01 25.511760192     13.80 13.65   B[e] 92 0
37 V* RY Sct Be* 18 25 31.4771300232 -12 41 24.192361500 10.25 10.38 9.12 9.46   O9.7Ibep 300 2
38 EM* MWC 300 Ae* 18 29 25.6913480400 -06 04 37.290320796 12.55 12.67 13.795     B1Ia+[e] 138 0
39 EM* LkHA 348 Be* 18 34 12.6529075104 -00 26 21.795198000   15.978 14.323 13.698   Be 34 0
40 EM* MWC 939 pA* 18 34 16.2191401512 -17 36 13.989813120     12.4     Be 34 0
41 EM* MWC 623 ** 19 56 31.5417133728 +31 06 20.124534348   11.98 10.92     K2Ib/II+B4III[e] 73 0
42 HD 190073 Ae* 20 03 02.5098474264 +05 44 16.660712904 7.91 7.86 7.73   7.65 A2IVe 256 0
43 EM* AS 381 s*b 20 06 39.9312728592 +33 14 28.088830464       13.613   B1[e]+K? 27 0
44 Hen 2-461 LP? 20 16 26.4159222096 +37 06 05.974060536     14.66     B[e] 32 2
45 * P Cyg s*b 20 17 47.2019733389 +38 01 58.549132671 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1177 1
46 EM* MWC 342 LP? 20 23 03.6172964112 +39 29 49.920095616 11.62 11.5 10.6     B[e] 85 1
47 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 801 0
48 HD 200775 Ae* 21 01 36.9205762896 +68 09 47.789578836 7.34 7.754 7.427 8.13   B2Ve 557 0
49 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2459 1
50 * mu. Cep s*r 21 43 30.4595558543 +58 46 48.165937434 8.85 6.43 4.08 1.98 0.22 M2-Ia 669 1
51 EM* MWC 645 Em* 21 53 27.4866658080 +52 59 58.019076852   13.72 13.00 12.98   B[e] 47 0
52 EM* MWC 1055 Em* 22 08 25.4277987048 +54 13 26.164151040   12.51 12.10     Be 25 0
53 * pi. Aqr Be* 22 25 16.6230017410 +01 22 38.634449478 3.64 4.60 4.64 4.48 4.48 B1III-IVe 415 0
54 EM* GGR 71 Em* 22 26 38.7333592272 +61 13 31.568432916   13.254 12.411 12.140   B[e] 30 0
55 EM* MWC 657 Be* 22 42 41.8293417264 +60 24 00.649510452   14.064 12.706 12.043   Be 35 0
56 V* R Aqr Sy* 23 43 49.4634303216 -15 17 04.176349872   8.823 7.683 9.37   M6.5-8.5e 784 0
57 PN M 2-56 pA* 23 56 36.4049726352 +70 48 18.246610008   19.81   17.27 17.64 Be 93 0

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