README web version of /home/usg/OPS/MTS/readme_xml/readme_81067100
Principal Investigator Email Address
Estimated Total Execution Time (hours, including overheads)
General Description
The aim of this proposal is to identify new members of the AM CVn class
of interacting binaries. Candidates have been identified from the Sloan Digital
Sky Survey on the basis of the optical colours of the six known AM CVn stars in
the SDSS. This resulted in 98 candidates in the RA range 10 < RA < 24 hours,
dec < +30 and 19.5 < g < 20.5.
Identification will be done through a single lowish resolution spectrum, where the
defining trait of the family is the presence of strong Helium I emission lines at
the rest wavelength (often double or triple peaked), and the absence of hydrogen
lines. The emission lines originate in the accretion disk surrounding the primary
white dwarf.
The observations can be obtained under any seeing condition and with up to thin
cirrus. Exposure times have been made assuming no intervening cirrus.
All objects have g>19.5 and are blue, and therefore grey time is required. Each
OB is self-contained and can be executed at any given time when the source is visible.
For all OBs we request a slit position along the parallactic angle. All finding
charts are from the SDSS and show the full field of view of FORS (6.8x6.8 arcminutes),
with North up and East to the left.
Waiver Requests
Critical Observing Condition Constraints
Time-Critical Aspects
Special Execution Requirements
Special Calibration Information
ToO Information
ToO Activators List
Is this a Pre-imaging run ?
Pre-imaging Requirements
Source(s) of Pre-imaging
Pre-imaging sources not listed above
Do all your OBs comply with the instrument-specific requirements listed
on the instrument-specific Phase 2 web page ?
If this is a pre-imaging run, did you select PRE-IMAGING for the Observing
Category for each Observing Template ?
Do all your finding charts comply with both the general and instrument-specific
Phase 2 Web Pages ?
If you submitted OBs for standard stars, did you specify the magnitude
and spectral type of all standard stars in the OBs ?
Have you included OBs for any calibrations that you need but which are
not part of the Calibration Plan ?
If you are observing Moving Targets, have you attached suitable ephemeris
files to your OBs?
If you have preferences which OBs should be executed first, did you make
use of the User Priority field in the OBs ?
If this is a run that requires coordinated observations with other facilities,
did you give proper instructions in the Time-Critical Aspects Section ?
If you have prepared your finding charts with tools other than FIMS,
do they comply with the specifications on the FORS1 Phase 2 web page ?
Last creation of page: Tue Oct 6 15:40:25 2009
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