2016AJ....151..121Y

Query : 2016AJ....151..121Y

2016AJ....151..121Y - Astron. J., 151, 121-121 (2016/May-0)

Be stars in the open cluster NGC 6830.

YU P.-C., LIN C.-C., LIN H.-W., LEE C.-D., KONIDARIS N., NGEOW C.-C., IP W.-H., CHEN W.-P., CHEN H.-C., MALKAN M.A., CHANG C.-K., LAHER R., HUANG L.-C., CHENG Y.-C., EDELSON R., RITTER A., QUIMBY R., BEN-AMI S., OFEK E.O., SURACE J. and KULKARNI S.R.

Abstract (from CDS):

We report the discovery of two new Be stars, and re-identify one known Be star in the open cluster NGC 6830. Eleven Hα emitters were discovered using the Hα imaging photometry of the Palomar Transient Factory Survey. Stellar membership of the candidates was verified with photometric and kinematic information using 2MASS data and proper motions. The spectroscopic confirmation was carried out by using the Shane 3 m telescope at the Lick observatory. Based on their spectral types, three Hα emitters were confirmed as Be stars with Hα equivalent widths greater than -10 Å. Two objects were also observed by the new spectrograph spectral energy distribution-machine (SED-machine) on the Palomar 60-inch Telescope. The SED-machine results show strong Hα emission lines, which are consistent with the results of the Lick observations. The high efficiency of the SED-machine can provide rapid observations for Be stars in a comprehensive survey in the future.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: star clusters: individual NGC 6830 - instrumentation: spectrographs - stars: emission-line, Be

Simbad objects: 17

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Number of rows : 17
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 NGC 663 OpC 01 46 22.2 +61 12 53   7.78 7.1     ~ 269 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
4 Feige 92 HS? 14 11 31.8784689192 +50 07 04.144734912   11.42 11.50     B9kp 48 0
5 PPMXL 5596397938564288599 Be? 19 50 02.3171740584 +23 00 15.182321508           ~ 1 0
6 PPMXL 5596398488853020024 * 19 50 02.9473140288 +23 02 40.245774180           ~ 1 0
7 PPMXL 5596503499492062906 Be? 19 50 04.6141983816 +23 20 27.406562892           ~ 1 0
8 PPMXL 5596398565670551191 Be? 19 50 05.0265869856 +23 02 55.269648996           ~ 1 0
9 NGC 6830 OpC 19 50 53.5 +23 05 37   8.41 7.9     ~ 102 0
10 EM* VES 72 Em* 19 50 58.5510024576 +23 08 28.446035352 12.07 12.04 11.58     B6:V 16 0
11 TYC 2140-2885-1 * 19 51 00.4719649032 +23 06 50.682027276   11.77 11.10     ~ 3 0
12 PPMXL 5596524930742863077 Be? 19 51 07.6615993320 +23 24 32.350323204           ~ 1 0
13 2MASS J19515812+2244598 Be? 19 51 58.1166111360 +22 45 00.024866928           ~ 1 0
14 PPMXL 5596611279961876725 Be? 19 52 08.5912437216 +22 59 59.619322464           ~ 1 0
15 PPMXL 5596710828412476545 Be? 19 52 10.9745381184 +23 17 05.956135872           ~ 1 0
16 PPMXL 5596603381723396576 Be? 19 52 25.3978371960 +22 49 11.629530012           ~ 1 0
17 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 837 0

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