Difference: Variablepapers (1 vs. 10)

Revision 102019-08-20 - PaulaSzkody

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META TOPICPARENT name="VariableWorkingGroup"

Papers from the Galactic Science working group

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Eclipsing White dwarf -- red dwarf binaries from PTF -- Jan Van Roestel - 2018-10-05

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>		 Cataclysmic Variables in the First Year of the Zwicky Transient Facility

Lead Author: Paula Szkody

Abstract: We have used the GROWTH Marshal to identify cataclysmic variables (CVs) during the first year of operation of the Zwicky Transient Facility (ZTF). Filtering on amplitude, time, and color produced 335 objects during the first year of testing and operation, with 90 being previoulsy confirmed CVs, 215 being good candidates based on the shape and color of their light curves obtained during 30-400 days of observations, and the remaining 30 being possible CVs but with too few data points to be listed as good candidates. Almost half the good candidates are within 10 deg of the galactic plane, in contrast to other large surveys which have avoided crowded fields. The available Gaia prallaxes are consistent with sampling the low mass transfer CVs, as predicted by population models. Followup spectra have confirmed Balmer emission in 23 objects, with a few showing high excitation HeII emission. Our results demonstrate that many surveys are required to capture all the CVs in the galaxy, especially those that target the galactic plane.

Paper for Working Group

 

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  • ztfps.pdf: CV paper draft for review and approval by variable science group
 
META FILEATTACHMENT attachment="SEAAN2018_Ngeow.pdf" attr="" comment="" date="1540024575" name="SEAAN2018_Ngeow.pdf" path="SEAAN2018_Ngeow.pdf" size="694405" user="ChowChoongNgeow" version="1"
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META FILEATTACHMENT attachment="ztfps.pdf" attr="" comment="CV paper draft for review and approval by variable science group" date="1566336927" name="ztfps.pdf" path="ztfps.pdf" size="692333" user="PaulaSzkody" version="1"

Revision 92019-02-09 - ThomasKupfer

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META TOPICPARENT name="VariableWorkingGroup"

Papers from the Galactic Science working group

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  -- Thomas Kupfer - 2018-10-05
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ZTF variable star classification: ML classification method and astrophysical results
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>		Introducing the Zwicky Transient Facility and the Be Star Variability Program: A Progress Report at the National Central University (Conference Paper)
 
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<		Authors: Jan van Roestel
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>		Lead author: Chow-Choong Ngeow
 
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>		Abstract: The Zwicky Transient Facility (ZTF) is a modern-day wide-field optical survey to systematically explore the transient and variable sky. The ZTF utilizes the 48-inch Samuel Oschin Schmidt Telescope located at the Palomar Observatory. This telescope is equipped with a mosaic CCD camera that provides a field of view of 47 squared degrees. The allocated observing time of ZTF can be divided into partnership time (40%), public time (40%) and Caltech time (20%). The public time contains two surveys: a 3-day cadence for the Northern Sky Survey and a 1-day cadence for the Galactic Plane Survey. Astronomical communities in South East Asian countries are encouraged to explore the public ZTF data once it is released in March 2019. Taiwan’s National Central University (NCU) is one of the partnered institutions, and a major ZTF-related project carried out at NCU is the ZTF Be stars variability (ZTF-BeV) program. The main goal of our program is to study the variability of Be stars in the range of ~13.5 to ~20.5 magnitudes.
 
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>		Submitted paper: SEAAN2018_Ngeow.pdf
 
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>		A new class of radial mode hot subdwarf pulsators
 
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<		Authors: Chow-Choong Ngeow
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>		Lead author: Thomas Kupfer
 
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<		Abstract: The Zwicky Transient Facility (ZTF) is a modern-day wide-field optical survey to systematically explore the transient and variable sky. The ZTF utilizes the 48-inch Samuel Oschin Schmidt Telescope located at the Palomar Observatory. This telescope is equipped with a mosaic CCD camera that provides a field of view of 47 squared degrees. The allocated observing time of ZTF can be divided into partnership time (40%), public time (40%) and Caltech time (20%). The public time contains two surveys: a 3-day cadence for the Northern Sky Survey and a 1-day cadence for the Galactic Plane Survey. Astronomical communities in South East Asian countries are encouraged to explore the public ZTF data once it is released in March 2019. Taiwan’s National Central University (NCU) is one of the partnered institutions, and a major ZTF-related project carried out at NCU is the ZTF Be stars variability (ZTF-BeV) program. The main goal of our program is to study the variability of Be stars in the range of ~13.5 to ~20.5 magnitudes.
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>		Abstract: We report the discovery of a new class of pulsating hot subdwarf stars as part of dedicated high-cadence observations at low Galactic latitudes using the Zwicky Transient Facility. We found three candidates of this new class. The objects show blue colors ($g-r\leq-0.1$mag), pulsation amplitudes of $>50$\,mmag and pulsation periods of 198, 363, 437\,sec. Fourier transforms of the objects show only one dominant pulsation mode. We obtained phase-resolved spectroscopy for all three objects and found significant velocity, effective temperature and surface gravity variability indicating that the objects are radial mode pulsators. The mean Teff and log(g) for both candidates are consistent with sdB parameters.
 
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<		Submitted paper: SEAAN2018_Ngeow.pdf
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>		Link to the overleaf document


ZTF variable star classification: ML classification method and astrophysical results

Lead author: Jan van Roestel

Abstract: TBD

Submitted paper:

 

A systematic study of Classical and Recurrent Novae in M31

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>		Lead author: Monika Soraisam
  Abstract:: TBD

Revision 82019-01-17 - ThomasKupfer

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Papers from the Galactic Science working group

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ZTF variable star classification: ML classification method and astrophysical results
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>		Authors: Jan van Roestel
 
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>		Abstract: TBD

Submitted paper: [[][TBD]]

 

Introducing the Zwicky Transient Facility and the Be Star Variability Program: A Progress Report at the National Central University (Conference Paper)

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<		Chow-Choong Ngeow et al.
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>		Authors: Chow-Choong Ngeow
  Abstract: The Zwicky Transient Facility (ZTF) is a modern-day wide-field optical survey to systematically explore the transient and variable sky. The ZTF utilizes the 48-inch Samuel Oschin Schmidt Telescope located at the Palomar Observatory. This telescope is equipped with a mosaic CCD camera that provides a field of view of 47 squared degrees. The allocated observing time of ZTF can be divided into partnership time (40%), public time (40%) and Caltech time (20%). The public time contains two surveys: a 3-day cadence for the Northern Sky Survey and a 1-day cadence for the Galactic Plane Survey. Astronomical communities in South East Asian countries are encouraged to explore the public ZTF data once it is released in March 2019. Taiwan’s National Central University (NCU) is one of the partnered institutions, and a major ZTF-related project carried out at NCU is the ZTF Be stars variability (ZTF-BeV) program. The main goal of our program is to study the variability of Be stars in the range of ~13.5 to ~20.5 magnitudes.
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  A systematic study of Classical and Recurrent Novae in M31
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>		Authors: Monika Soraisam
 
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Revision 72018-10-20 - ChowChoongNgeow

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Papers from the Galactic Science working group

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  Chow-Choong Ngeow et al.
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>		Abstract: The Zwicky Transient Facility (ZTF) is a modern-day wide-field optical survey to systematically explore the transient and variable sky. The ZTF utilizes the 48-inch Samuel Oschin Schmidt Telescope located at the Palomar Observatory. This telescope is equipped with a mosaic CCD camera that provides a field of view of 47 squared degrees. The allocated observing time of ZTF can be divided into partnership time (40%), public time (40%) and Caltech time (20%). The public time contains two surveys: a 3-day cadence for the Northern Sky Survey and a 1-day cadence for the Galactic Plane Survey. Astronomical communities in South East Asian countries are encouraged to explore the public ZTF data once it is released in March 2019. Taiwan’s National Central University (NCU) is one of the partnered institutions, and a major ZTF-related project carried out at NCU is the ZTF Be stars variability (ZTF-BeV) program. The main goal of our program is to study the variability of Be stars in the range of ~13.5 to ~20.5 magnitudes.

Submitted paper: SEAAN2018_Ngeow.pdf

 
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Eclipsing White dwarf -- red dwarf binaries from PTF -- Jan Van Roestel - 2018-10-05

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<		 Introducing the Zwicky Transient Facility and the Be Star Variability Program: A Progress Report at the National Central University (Conference Paper) -- Chow-Coong Ngeow 2018-10-09
 

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META FILEATTACHMENT attachment="SEAAN2018_Ngeow.pdf" attr="" comment="" date="1540024575" name="SEAAN2018_Ngeow.pdf" path="SEAAN2018_Ngeow.pdf" size="694405" user="ChowChoongNgeow" version="1"

Revision 62018-10-20 - MonikaSoraisam

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META TOPICPARENT name="VariableWorkingGroup"

Papers from the Galactic Science working group

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>		A systematic study of Classical and Recurrent Novae in M31

Monika Soraisam et al.

TBD

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Revision 52018-10-16 - ThomasKupfer

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Papers from the Galactic Science working group

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ZTF variable star classification: ML classification method and astrophysical results

Jan van Roestel et al.

Abstract TBD

Introducing the Zwicky Transient Facility and the Be Star Variability Program: A Progress Report at the National Central University (Conference Paper)

Chow-Choong Ngeow et al.

TBD

 
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<		ZTF variable star classification: ML classification method and astrophysical results -- Jan Van Roestel - 2018-10-05
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Abstract

Eclipsing White dwarf -- red dwarf binaries from PTF -- Jan Van Roestel - 2018-10-05

  Introducing the Zwicky Transient Facility and the Be Star Variability Program: A Progress Report at the National Central University (Conference Paper) -- Chow-Coong Ngeow 2018-10-09

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Revision 42018-10-09 - JanVanRoestel

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META TOPICPARENT name="VariableWorkingGroup"

Papers from the Galactic Science working group

Revision 32018-10-09 - ChowChoongNgeow

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Papers from the Galactic Science working group

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  ZTF variable star classification: ML classification method and astrophysical results -- Jan Van Roestel - 2018-10-05
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>		Introducing the Zwicky Transient Facility and the Be Star Variability Program: A Progress Report at the National Central University (Conference Paper) -- Chow-Coong Ngeow 2018-10-09
 

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Revision 22018-10-05 - JanVanRoestel

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Papers from the Galactic Science working group

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>		Eclipsing White dwarf -- red dwarf binaries from PTF -- Jan Van Roestel - 2018-10-05

ZTF variable star classification: ML classification method and astrophysical results -- Jan Van Roestel - 2018-10-05

 
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Revision 12018-10-05 - ThomasKupfer

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Papers from the Galactic Science working group

Article text.

-- Thomas Kupfer - 2018-10-05

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