Six New ZZ Ceti Stars from the SPY and the HQS Surveys

B. Voss; D. Koester; R. Ostensen; R. Napiwotzki; D. Homeier; D. Reimers

Six New ZZ Ceti Stars from the SPY and the HQS Surveys

B. Voss, D. Koester, R. Ostensen, R. Napiwotzki, D. Homeier, D. Reimers

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Abstract

We report on the discovery of six new ZZCeti stars. They were selected as candidates based on preparatory photometric observations of ob- jects from the Hamburg Quasar Survey (HQS), and based on the spectra of the Supernova Ia Progenitor Survey (SPY). Time-series photometry of 19 can- didate stars was carried out at the Nordic Optical Telescope (NOT) at Roque de Los Muchachos Observatory, Spain. The new variables are relatively bright, 15.4 < B < 16.6. Among them is WD 1150−153, which is the third ZZCeti star that shows photospheric CaII in its spectrum.

Original language	English
Title of host publication	In: Procs of the 15th European Workshop on White Dwarfs - ASP Conf Series 372
Publisher	Astronomical Society of the Pacific
Pages	583-586
ISBN (Print)	978-1-58381-239-6, 978-1-58381-306-5
Publication status	Published - 2007

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title = "Six New ZZ Ceti Stars from the SPY and the HQS Surveys",

abstract = "We report on the discovery of six new ZZCeti stars. They were selected as candidates based on preparatory photometric observations of ob- jects from the Hamburg Quasar Survey (HQS), and based on the spectra of the Supernova Ia Progenitor Survey (SPY). Time-series photometry of 19 can- didate stars was carried out at the Nordic Optical Telescope (NOT) at Roque de Los Muchachos Observatory, Spain. The new variables are relatively bright, 15.4 < B < 16.6. Among them is WD 1150−153, which is the third ZZCeti star that shows photospheric CaII in its spectrum.",

author = "B. Voss and D. Koester and R. Ostensen and R. Napiwotzki and D. Homeier and D. Reimers",

note = "Original paper can be found at: http://www.astrosociety.org/pubs/cs/361.html Copyright ASP",

year = "2007",

language = "English",

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T1 - Six New ZZ Ceti Stars from the SPY and the HQS Surveys

AU - Voss, B.

AU - Koester, D.

AU - Ostensen, R.

AU - Napiwotzki, R.

AU - Homeier, D.

AU - Reimers, D.

N1 - Original paper can be found at: http://www.astrosociety.org/pubs/cs/361.html Copyright ASP

PY - 2007

Y1 - 2007

N2 - We report on the discovery of six new ZZCeti stars. They were selected as candidates based on preparatory photometric observations of ob- jects from the Hamburg Quasar Survey (HQS), and based on the spectra of the Supernova Ia Progenitor Survey (SPY). Time-series photometry of 19 can- didate stars was carried out at the Nordic Optical Telescope (NOT) at Roque de Los Muchachos Observatory, Spain. The new variables are relatively bright, 15.4 < B < 16.6. Among them is WD 1150−153, which is the third ZZCeti star that shows photospheric CaII in its spectrum.

AB - We report on the discovery of six new ZZCeti stars. They were selected as candidates based on preparatory photometric observations of ob- jects from the Hamburg Quasar Survey (HQS), and based on the spectra of the Supernova Ia Progenitor Survey (SPY). Time-series photometry of 19 can- didate stars was carried out at the Nordic Optical Telescope (NOT) at Roque de Los Muchachos Observatory, Spain. The new variables are relatively bright, 15.4 < B < 16.6. Among them is WD 1150−153, which is the third ZZCeti star that shows photospheric CaII in its spectrum.

M3 - Conference contribution

SN - 978-1-58381-239-6

SN - 978-1-58381-306-5

SP - 583

EP - 586

BT - In: Procs of the 15th European Workshop on White Dwarfs - ASP Conf Series 372

PB - Astronomical Society of the Pacific

ER -

Six New ZZ Ceti Stars from the SPY and the HQS Surveys

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