Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.apo.nmsu.edu/Telescopes/ARCSAT/ObsSchedules/arcsat_apr2016/AS07.html
Дата изменения: Mon Apr 4 05:45:35 2016
Дата индексирования: Sun Apr 10 06:09:18 2016
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ARCSAT ID NUMBER: AS07

DESCRIPTIVE TITLE: Time Domain Studies of Transients and Variable Stars

PI: Guy Stringfellow

OBSERVER(S): Guy Stringfellow, 
CU undergrads: Amanda Koziol, Brandon Bell, Michael Hinton, Owen Hart, Eliot Nelson, new students (TBD)

UNCERTIFIED/UNTRAINED OBSERVERS: TBD
(all names specifically identified above have been fully checked out using ARCSAT)

COLLABORATORS: Ron Probst (NOAO)
 
CONTACT INFORMATION:  Guy.Stringfellow at colorado.edu   303-506-3160 cell

NUMBER OF WEEKS REQUESTED:  3

TIME REQUESTED: 3 1-week blocks
Requires Dark time and a monthly time cadence for continued monitoring.

Apr 6-10 [If SurveyCam is available; alternate April 11-17] 
May 9-15 [CU Finals week is May 1-5 and students are unavailable to observe] 
Jun 6-12 
  тАФтАФтАФтАФтАФтАФтАФтАФтАФ

INSTRUMENT: SurveyCam

FILTERS:  BVRI Ha

COMMENTS:  


BRIEF SCIENCE JUSTIFICATION: 

Several types of eruptive and variable stars are being studied. These
include accretion driven outbursts from young stellar objects (YSOs),
more modest accretion and rotational variability of YSOs, the
outbursts of novae and their subsequent fading on years time scales,
and Luminous Blue Variable stars and the related supernovae
impostors. The discovery and light curves of recent novae in M31 have
been followed in previous ARCSAT runs(**: see below). M31 remains a
priority target, and M31 begins rising in June. 2016Q2 focuses on SNe
impostors and novae which are up all night, and several star forming
regions observable during the 2nd half of the night. Early April is
our last opportunity to obtain final seasonal observations of targets
being monitored in Orion (and other adjacent fields) until they rise
again late Summer/Fall.

The SNe impostors and star forming regions are pushing ARCSAT down to
~18 mag and below, when conditions permit, which requires dark time;
dates selected reflect this constraint.  As in the past, CU
undergraduate students will carry out the ARCSAT observations under
the PIтАЩs supervision and mentoring. Through these science programs
they are being introduced to observational research methods and
practices, data reduction, and photometric analysis. Students are
supported in part by the CU Undergraduate Research Opportunities
Program.

**: 
2014Q3: confirmed M31 Nova 2014-07a and reported pre-discovery photometry extending 
        over a 5 day period; ATel #6324.
2015Q3: new M31 nova discovered and announced - ATel #8048 (2015-9a).