2018ApJ...863...70L

Query : 2018ApJ...863...70L

2018ApJ...863...70L - Astrophys. J., 863, 70-70 (2018/August-2)

New Oe stars in LAMOST DR5.

LI G.-W., SHI J.-R., YANNY B., BAI Z.-R., YU S.-C., DONG Y.-Q., LEI Y.-J., YUAN H.-L., ZHANG W. and ZHAO Y.-H.

Abstract (from CDS):

Stars of spectral type Oe are very rare. To date, only 13 Oe stars have been identified within our Galaxy. In this paper, we present six new Oe stars and four new B0e stars found in LAMOST DR5. Repeated spectral observations of the same Oe stars show some emission-line variability. The Hβ emission of TYC 4801-17-1 shows rapid V/R variation. Phase lags in the V/R ratio of TYC 4801-17-1 spectra are also seen. We found that the unusual O4.5 star RL 128 is an Oe star with variable Hα intensity and its Ca II triplet emission appears when Hα emission reaches maximum intensity. These newly identified early-type Oe and B0e stars significantly increase the known sample.

Abstract Copyright: © 2018. The American Astronomical Society.

Journal keyword(s): stars: early-type - stars: emission-line, Be - stars: massive

Simbad objects: 26

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Number of rows : 26
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 V* KM Cas Or* 02 29 30.4684170480 +61 29 44.163943476 12.21 12.285 11.229 10.990   O9.5V((f)) 53 0
3 BD+62 441 * 02 41 47.6619842928 +62 39 26.169593940   10.38 10.09     B0e 14 0
4 HD 17520 ** 02 51 14.4527711976 +60 23 10.057239852 7.86 8.54 8.24 7.96 7.73 O9.2Ve+O8Vz 151 0
5 UCAC4 709-027167 * 03 35 45.1834612488 +51 41 07.412707860   13.279 12.265 11.890   B0e 1 0
6 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 1037 0
7 BD+51 921 * 04 25 27.0588319632 +52 02 37.621565664 10.06 10.401 9.674 9.545   B0e 19 0
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
9 * zet Tau Be* 05 37 38.6854231 +21 08 33.158804 2.22 2.84 3.03 3.06 3.15 B1IVe_shell 751 0
10 HD 39680 Be* 05 54 44.7315378936 +13 51 17.064365364 7.05 8.01 7.99     O6V:[n]pevar 128 0
11 HD 255055 Em* 06 19 41.6469037320 +23 17 20.229493524 8.94 9.61 9.40 9.421   O9.2IVe 38 0
12 RL 128 V* 06 24 59.8664756880 +26 49 19.398522648 14.31 15.21 15.11 15.180   O4.5V((c))z 18 0
13 HD 45314 Be* 06 27 15.7784072112 +14 53 21.212913660 5.91 6.79 6.64     O9:npe 183 0
14 HD 46056 Y*O 06 31 20.8608343776 +04 50 03.842554740 7.60 8.36 8.16 8.16 8.09 O8Vn 242 0
15 HD 265134 s*b 06 51 33.9286765344 +13 37 02.146545732   9.06 9.14     B0e 25 0
16 EM* RJHA 83 Em* 06 52 44.0232702096 -00 11 16.732537116   11.93 11.31 11.35   O8e 8 0
17 V* V441 Pup HXB 07 28 53.5788273168 -26 06 28.897118208 11.27 12.29 11.83 11.53   O5Ve 91 0
18 HD 60848 Be* 07 37 05.7325392528 +16 54 15.300327852 5.55 6.67 6.87     O8:V:pe 150 0
19 HD 93190 Be* 10 44 19.6107364872 -59 16 58.802853324 8.12 9.10 8.84 9.24   O9.7:V:(n)e 68 0
20 HD 120678 Em* 13 52 56.4133904568 -62 43 14.260321632 7.04 9.45 8.20 9.02   O9.5Ve 76 0
21 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1908 0
22 HD 155806 Be* 17 15 19.2478670712 -33 32 54.299379012 4.61 5.52 5.53     O7.5V((f))z(e) 240 0
23 LS II +23 14 * 19 40 12.4820518080 +23 37 40.473964056 12.75 12.58 11.79 11.642   B0Vn 12 0
24 * 68 Cyg SB* 21 18 27.1862219256 +43 56 45.399147864 4.05 4.99 5.00     O7.5IIIn((f)) 383 0
25 HD 240234 Em* 23 14 34.4585446776 +59 50 12.225145956 9.58 10.05 9.5     B0 34 0
26 EM* GGR 149 Em* 23 35 14.5632894192 +60 00 23.233222440 11.92 12.308 11.347 11.151   O9e 16 0

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