Be STARS in the OPEN CLUSTER NGC 6830

Po Chieh Yu; Chien Cheng Lin; Hsing Wen Lin; Chien De Lee; Nick Konidaris; Chow Choong Ngeow; Wing Huen Ip; Wen Ping Chen; Hui Chen Chen; Matthew A. Malkan; Chan Kao Chang; Russ Laher; Li Ching Huang; Yu Chi Cheng; Rick Edelson; Andreas Ritter; Robert Quimby; Sagi Ben-Ami; Eran O. Ofek; Jason Surace; Shrinivas R. Kulkarni

doi:10.3847/0004-6256/151/5/121

Be STARS in the OPEN CLUSTER NGC 6830

Po Chieh Yu, Chien Cheng Lin, Hsing Wen Lin, Chien De Lee, Nick Konidaris, Chow Choong Ngeow, Wing Huen Ip, Wen Ping Chen, Hui Chen Chen, Matthew A. Malkan, Chan Kao Chang, Russ Laher, Li Ching Huang, Yu Chi Cheng, Rick Edelson, Andreas Ritter, Robert Quimby, Sagi Ben-Ami, Eran O. Ofek, Jason SuraceShrinivas R. Kulkarni

Graduate Institute of Astronomy

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

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. 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.

Original language	English
Article number	121
Journal	Astronomical Journal
Volume	151
Issue number	5
DOIs	https://doi.org/10.3847/0004-6256/151/5/121
State	Published - May 2016

Keywords

galaxies: star clusters: individual (NGC 6830)
instrumentation: spectrographs
stars: emissionline, Be

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10.3847/0004-6256/151/5/121

Time-Domain Astronomy in Taiwan (Tidat): from Local Star Clusters to Local Galaxies(1/3)
Ngeow, C.
1/08/15 → 31/07/16
Project: Research
探高計畫之再上層樓：從鹿林到ZTF(1/2)
Ip, W.
1/08/15 → 31/10/16
Project: Research

Cite this

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., ... Kulkarni, S. R. (2016). Be STARS in the OPEN CLUSTER NGC 6830. Astronomical Journal, 151(5), [121]. https://doi.org/10.3847/0004-6256/151/5/121

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abstract = "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. 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.",

keywords = "galaxies: star clusters: individual (NGC 6830), instrumentation: spectrographs, stars: emissionline, Be",

author = "Yu, {Po Chieh} and Lin, {Chien Cheng} and Lin, {Hsing Wen} and Lee, {Chien De} and Nick Konidaris and Ngeow, {Chow Choong} and Ip, {Wing Huen} and Chen, {Wen Ping} and Chen, {Hui Chen} and Malkan, {Matthew A.} and Chang, {Chan Kao} and Russ Laher and Huang, {Li Ching} and Cheng, {Yu Chi} and Rick Edelson and Andreas Ritter and Robert Quimby and Sagi Ben-Ami and Ofek, {Eran O.} and Jason Surace and Kulkarni, {Shrinivas R.}",

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AU - Yu, Po Chieh

AU - Lin, Chien Cheng

AU - Lin, Hsing Wen

AU - Lee, Chien De

AU - Konidaris, Nick

AU - Ngeow, Chow Choong

AU - Ip, Wing Huen

AU - Chen, Wen Ping

AU - Chen, Hui Chen

AU - Malkan, Matthew A.

AU - Chang, Chan Kao

AU - Laher, Russ

AU - Huang, Li Ching

AU - Cheng, Yu Chi

AU - Edelson, Rick

AU - Ritter, Andreas

AU - Quimby, Robert

AU - Ben-Ami, Sagi

AU - Ofek, Eran O.

AU - Surace, Jason

AU - Kulkarni, Shrinivas R.

PY - 2016/5

Y1 - 2016/5

N2 - 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. 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.

AB - 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. 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.

KW - galaxies: star clusters: individual (NGC 6830)

KW - instrumentation: spectrographs

KW - stars: emissionline, Be

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VL - 151

JO - Astronomical Journal

JF - Astronomical Journal

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ER -

Be STARS in the OPEN CLUSTER NGC 6830

Abstract

Keywords

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Projects

Time-Domain Astronomy in Taiwan (Tidat): from Local Star Clusters to Local Galaxies(1/3)

探高計畫之再上層樓：從鹿林到ZTF(1/2)

Cite this