Purpose: Obtain spectra sufficient to classify the candidate as a QSO (or not), and, if so, its redshift and line widths (the latter for estimating the mass of the central black hole).
Instructions:
Here is some basic information about each target, as well as priorities: Pri ObjID r-band RA DEC 1 520 17.2 325.3 -0.8 2 268 20.6 15.8 -0.2 3 204 19.1 15.2 -0.9 Note the last object is almost certainly a blazar, as there is an SDSS spectrum. It show a fairly convincing continuum lag, but no broad lines (just continuum). We're curious about it, but it is definitely our lowest priority as we don't have a good way to estimate the BH mass.
Targets: QSOcandidates.csv
Finding Charts: QSO Candidate Finding Chart Page
Tarball: QSOcandidates.tgz
----------------------------------------------------------------------------
Purpose: Obtain radial velocities at different points of each star's light curve.
Instructions:
Hi, my name is Gisella Clementini. I'm a colleagues of Maria Rosa Cioni, expert in RR Lyrae stars and responsible for the processing of the RR Lyrae stars and Cepheids observed by the Gaia mission. Maria Rosa asked me to select a few RR Lyrae stars among the new ones discovered by Gaia in the outskirts of the LMC and released in DR1, to fill the slots of time you have available at the end of the nights of Jan. 27 and 28. Since it is crucial to observe variable stars in the right phase of the pulsation cycle, I have selected 7 LMC RR Lyraes that on Jan 27 and 28 are at right phase starting from 2 hours local Chilean time. Three of them should be observed on Jan. 27, the remaining 4 on Jan 28. Thirty minutes (shatter time) and possibly a couple or more exposures within the Local Time interval listed in the attached file would the best choice for us. I'm sending (attached to this message) an ascii file with the list of targets and instructions about the start time of observation and the time interval within which they should be observed, on behalf of Maria Rosa, who is seek and might not read this email on time. In the file columns 2 and 3 give the star coordinates and the 19 digit number is the Gaia source ID, Hope everything is clear, however, don't esitate to contact me should you need any further information. Best regards and good luck with the observations, Gisella Clementini
Targets:
---------------------------------------------------------------------------------------------------------------------------------------------------------------- # _RAJ2000 _DEJ2000 TBest SourceId P EpG G_mean RA_ICRS DE_ICRS Date Interval in LT Phase 119.5118467 -66.1086339 RRAB 5274685276505037824 0.55622425 1688.00926101 18.52 119.5118466706 -66.1086338678 Jan. 28 5:00 - 5:30 ~0.67 124.0775125 -63.9026616 RRAB 5276494007492172032 0.5809624 1682.44772082 19.029 124.0775125114 -63.9026615716 Jan. 28 4:30 - 5:30 ~0.65 122.8958618 -63.7695792 RRC 5277305069117881472 0.29782953 1681.41008427 19.025 122.8958617714 -63.7695791933 Jan. 27 2:00 - 3:00 ~0.50 117.1029844 -64.3180318 RRC 5287819595734156544 0.37066965 1678.3974029 19.186 117.1029844229 -64.3180318167 Jan. 28 2:00 - 3:00 ~0.50 116.3369776 -62.0944876 RRAB 5289131931582565376 0.61298192 1667.04632939 18.821 116.3369775561 -62.0944876416 Jan. 28 2:15 - 3:45 ~0.7-0.8 119.9178625 -62.8740522 RRAB 5289551292187916416 0.35325973 1674.64878951 18.973 119.917862468 -62.8740521946 Jan. 27 4:30 - 5:00 ~0.50 119.8474374 -61.8701195 RRC 5289819779183238912 0.38159528 1670.8700612 19.269 119.8474373565 -61.8701194949 Jan. 27 2:30 - 4:00 ~0.50 ----------------------------------------------------------------------------------------------------------------------------------------------------------------
Finding Charts: TBD