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Overview

TitleStudies on variable stars and extinction law in the Milky Way and nearby galaxies
Date2017 March 27 (Mon) ‐ 28 (Tue)
VenueLecture Room #1043, Science Building No.1
Department of Astronomy, The University of Tokyo
Map of the Campus, Access

Purpose

Although the Milky Way is the nearest galaxy which we should be able to study in many details, we are confronted by some observational challenges. One of the most severe difficulty is the interstellar extinction caused by interstellar dust across the Galactic disk. For example, a large fraction of pulsating stars in the disk remain to be identified, although they could give us a lot of useful information on the structure and evolution of the Milky Way. Even if thousands or millions of pulsating stars are found in the future surveys, especially those for the infrared wavelengths, the uncertainty involved in the correction of the extinction may cause serious problems. Understanding the interstellar extinction law as well as the characteristics of stellar tracers including the pulsating stars is crucial to fully exploit the new-generation and large-scale data sets, e.g., being produced Gaia (ESA) and VISTA (ESO). This workshop is devoted to the extinction law and pulsating stars (and other kinds of variable stars).

Schedule

2017/03/27

TimeSpeakerTitle
15:00—15:30S. NishiyamaThe universality of the interstellar extinction law in our Galaxy (PDF)
15:30—16:00N. MatsunagaImpact of the extinction law on the distribution of variable stars in the Milky Way (PDF)
16:00—16:30Break
16:30—17:00T. ZenkoMagnetic field in the inner Galactic region by Near-Infrared Polarimetry of classical Cepheids (PDF)
17:00—17:30Kei FukueAbundance determination methods of variable stars with NIR high-resolution spectroscopy (PDF)
17:30—18:00M. JianLine Depth Ratios in APOGEE H Band Spectra: the Metallicity Effect (PDF)
18:30— Banquet

2017/03/28

TimeSpeakerTitle
10:30—11:00T. SumiPRIME Infrared Microlensing Survey (PDF)
11:00—11:30Y. ItaNIR Variable Star Survey in the Magellanic Clouds and Galactic Plane (PDF)
11:30—11:35Group Photo
11:35—13:00Lunch
13:00—13:30T. NagayamaNear infrared monitoring observation of Nova V5668 Sgr
13:30—14:00R. UragoThe structure of Milky way using longer period Mira variables (PDF)
14:00—14:30A. NakagawaVLBI Astrometry of the Galactic Miras and LPVs with VERA (PDF)
14:30—15:00Break
15:00—15:30D. Buckley2S 1553-542: finding a distant Be-X-ray pulsar through reddening (PDF)
15:30—16:00L. TownsendIRSF monitoring of photometric and polarimetric variability in Magellanic Cloud X-ray binary systems (PDF)
16:00—16:30Break
16:30—17:30M. FeastThe structure of our Galaxy: Observational progress and problem (PDF)

Poster Presentation

Participants

NameInstitute
Fumio AbeNagoya Univ
Sudhanshu BarwaySAAO
David BuckleySALT/SAAO
Michael FeastUniv Cape Town
Kei FukueKyoto Sangyo Univ
Yoshifusa ItaTohoku Univ
Mingjie JianUniv Tokyo
Tomoharu KurayamaTeikyo Univ Science
Noriyuki MatsunagaUniv Tokyo
Yasushi MurakiNagoya Univ
Tetsuya NagataKyoto Univ
Takahiro NagayamaKagoshima Univ
Akiharu NakagawaKagoshima Univ
Masashi NashimotoTohoku Univ
Shogo NishiyamaMiyagi Univ Education
Hiroki OnozatoTohoku Univ
Takahiro SumiOsaka Univ
Toshihiko TanabeUniv Tokyo
Lee TownsendUniv Cape Town
Nobuharu UkitaNAOJ
Riku UragoKagoshima Univ
Tetsuya ZenkoKyoto Univ

Registration

Please fill in the following form and sent it to our e-mail address workshop201703@astron.s.u-tokyo.ac.jp by Fri, 17 Mar 2017. 

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   Mon, 27 March
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   Tue, 28 March
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Organizers

Acknowledgements

This workshop is supported by a Joint Research Projects under agreement between the JSPS and NRF in South Africa, and by a JSPS Specially Promoted Research program (No. 16H06286; PI, Prof. T. Sumi).