Sökning: onr:"swepub:oai:DiVA.org:su-196508" >
Year 1 of the ZTF h...
Year 1 of the ZTF high-cadence Galactic plane survey : strategy, goals, and early results on new single-mode hot subdwarf B-star pulsatos
-
Kupfer, Thomas (författare)
-
Prince, Thomas A. (författare)
-
van Roestel, Jan (författare)
-
visa fler...
-
Bellm, Eric C. (författare)
-
Bildsten, Lars (författare)
-
Coughlin, Michael W. (författare)
-
Drake, Andrew J. (författare)
-
Graham, Matthew J. (författare)
-
Klein, Courtney (författare)
-
Kulkarni, Shrinivas R. (författare)
-
Masci, Frank J. (författare)
-
Walters, Richard (författare)
-
Andreoni, Igor (författare)
-
- Biswas, Rahul (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)
-
Bradshaw, Corey (författare)
-
Duev, Dmitry A. (författare)
-
Dekany, Richard (författare)
-
Guidry, Joseph A. (författare)
-
Hermes, J. J. (författare)
-
Laher, Russ R. (författare)
-
Riddle, Reed (författare)
-
visa färre...
-
(creator_code:org_t)
- 2021-05-12
- 2021
- Engelska.
-
Ingår i: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 505:1, s. 1254-1267
- Relaterad länk:
-
https://arxiv.org/ab...
-
visa fler...
-
https://authors.libr...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- We present the goals, strategy, and first results of the high-cadence Galactic plane survey using the Zwicky Transient Facility (ZTF). The goal of the survey is to unveil the Galactic population of short-period variable stars, including short-period binaries, and stellar pulsators with periods less than a few hours. Between 2018 June and 2019 January, we observed 64 ZTF fields resulting in 2990 deg2 of high stellar density in the ZTF-r band along the Galactic plane. Each field was observed continuously for 1.5 to 6 h with a cadence of 40 sec. Most fields have between 200 and 400 observations obtained over 2–3 continuous nights. As part of this survey, we extract a total of ≈230 million individual objects with at least 80 epochs obtained during the high-cadence Galactic plane survey reaching an average depth of ZTF–r ≈ 20.5 mag. For four selected fields with 2–10 million individual objects per field, we calculate different variability statistics and find that ≈1–2 per cent of the objects are astrophysically variable over the observed period. We present a progress report on recent discoveries, including a new class of compact pulsators, the first members of a new class of Roche lobe filling hot subdwarf binaries as well as new ultracompact double white dwarfs and flaring stars. Finally, we present a sample of 12 new single-mode hot subdwarf B-star pulsators with pulsation amplitudes between ZTF–r = 20–76 mmag and pulsation periods between P = 5.8–16 min with a strong cluster of systems with periods ≈6 min. All of the data have now been released in either ZTF Data Release 3 or Data Release 4.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- surveys
- binaries (including multiple): close
- stars: oscillations (including pulsations)
- white dwarfs
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Kupfer, Thomas
-
Prince, Thomas A ...
-
van Roestel, Jan
-
Bellm, Eric C.
-
Bildsten, Lars
-
Coughlin, Michae ...
-
visa fler...
-
Drake, Andrew J.
-
Graham, Matthew ...
-
Klein, Courtney
-
Kulkarni, Shrini ...
-
Masci, Frank J.
-
Walters, Richard
-
Andreoni, Igor
-
Biswas, Rahul
-
Bradshaw, Corey
-
Duev, Dmitry A.
-
Dekany, Richard
-
Guidry, Joseph A ...
-
Hermes, J. J.
-
Laher, Russ R.
-
Riddle, Reed
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Fysik
- Artiklar i publikationen
-
Monthly notices ...
- Av lärosätet
-
Stockholms universitet