Principal Investigator Email Address
kwrsema@science.uva.nl
Estimated Total Execution Time (hours, including overheads)
n/a
General Description
This is a target-of-opportunity program aimed K band polarimetry of a bright long gamma-ray burst or a short gamma-ray burst afterglow.
Waiver Requests
No Waiver Request was submitted
Critical Observing Condition Constraints
n/a
Time-Critical Aspects
If possible, we would like the ISAAC polarisation measurement(s) to be (quasi)simultaneous with (one of) the R band polarimetry measurements at FORS1. In case this is not possible - due to eg instrument availibility - we will indicate a prefered time of observation in the request. We will communicate with the observer to establish the best strategy.
Special Execution Requirements
n/a
Special Calibration Information
We have submitted OBs for calibration, listed below. We have submitted calibration OBs for both polarised and unpolarised standards: two polarised standards and eight unpolarised ones. In order to correct for instrumental polarisation and Galactic (foreground) polarisation it generally suffices to observe unpolarised standards only. However, since the polarization of GRBs in K band is expected to be close to the instrumental polarization level, we may also observe polarized standards to calibrate better. We have therefore submitted OBs for two polarized objects, that are however only visible during parts of the semester. Unfortunately there are no other well calibrated polarized standards available. This means we will calibrate using unpolarised standards, and may observe a polarized standard when needed, which may be long after the GRB observation. The calibrators are in different positions on the sky. Because our target coordinates are not yet known (this is a ToO program for gamma-ray bursts), we will provide the name and possibly time of execution for the calibration OB(s) when we request a ToO observation. Depending on the science OBs, calibration OBs will be selected by us from the list of submitted OBs, according to the used science OB(s) and we'll discuss with the observer. The choice of time of execution of the calibration will depend on visibility of the calibration stars. The two polarised calibration stars are: HD118112, Ks-magnitude ~10.8, B9V star, OBs: *_s1_*.obx RCrA 15, Ks-magnitude ~10.9, GI star, OBs: *_s2_*.obx The eight unpolarised calibration stars are WD2359-434, Ks-magnitude ~12.4, white dwarf, DAs type, OBs: *_wd1_*.obx WD0310-688, Ks-magnitude ~11.9, white dwarf, DA type, OBs: *_wd2_*.obx WD0752-676, Ks-magnitude ~12.4, white dwarf, DC type, OBs: *_wd3_*.obx WD1344+106, Ks-magnitude ~12.2, white dwarf, DAw type, OBs: *_wd4_*.obx WD1615-154, Ks-magnitude ~14.3, white dwarf, DA type, OBs: *_wd5_*.obx WD1620-391, Ks-magnitude ~11.8, white dwarf, DA type, OBs: *_wd6_*.obx WD2039-202, Ks-magnitude ~13.0, white dwarf, DAw type, OBs: *_wd7_*.obx WD2149+021, Ks-magnitude ~13.4, white dwarf, DA type, OBs: *_wd8_*.obx
ToO Information
Coordinates and a findingchart will be submitted together with the ToO request. This request will contain OBs that will be selected from the submitted OBs. Requests are likely to contain more than one OB: we will communicate and coordinate order of execution and planning with the observer when necessary. Please make the data (both science and calibration) available through ftp a.s.a.p., so we can analyze the data and immediately determine our strategy for follow-up observations in the same night and/or following nights. Considering the fact that this is a ToO program, the observing strategy may change a bit, leading to slight changes in the prepared OBs. We will communicate these clearly to the observer. Note that, to be able to deal with different ToO strategies, we may have submitted more OBs than our allocated time allows for. We will, however, take care not to override the total allocated time.
ToO Activators List
Klaas Wiersema kwrsema@science.uva.nl Rhaana Starling starling@science.uva.nl Peter Curran pcurran@science.uva.nl Ralph A.M.J. Wijers rwijers@science.uva.nl Evert Rol er45@star.le.ac.uk Paul Vreeswijk pvreeswi@eso.org Nicola Masetti masetti@iasfbo.inaf.it Eliana Palazzi palazzi@iasfbo.inaf.it Elisabetta Maiorano maiorano@iasfbo.inaf.it Giulia Stratta gstratta@ast.obs-mip.fr Elena Pian pian@iasfbo.inaf.it Javier Gorosabel jgu@iaa.es Antonio de Ugarte Postigo deugarte@iaa.es Jochen Greiner jcg@mpe.mpg.de Aybuke Yoldas ayoldas@mpe.mpg.de Sylvio Klose klose@tls-tautenburg.de Alexander Kann kann@tls-tautenburg.de Nial Tanvir nrt@ast.cam.ac.uk, nrt@star.herts.ac.uk Rob Priddey priddey@star.herts.ac.uk Andrew Levan anl@star.le.ac.uk David Bersier dfb@astro.livjm.ac.uk
Is this a Pre-imaging run ?
false
Pre-imaging Requirements
n/a
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 ?
N/A
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 ?
N/A
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?
N/A
If you have preferences which OBs should be executed first, did you make use of the User Priority field in the OBs ?
N/A
If this is a run that requires coordinated observations with other facilities, did you give proper instructions in the Time-Critical Aspects Section ?
N/A
If you submitted OBs for standard stars, did you use the provided StandardStar templates ?
N/A
If you are using a specific offset pattern or position angle, did you check carefully the definition in the manual ?
N/A
If you are doing spectroscopy, did you draw the slit on the Finding Charts ?
N/A
Did you enter the magnitude of the brightest star in the field-of-view in the 'Instrument Comments' field of each OB ?
N/A
If you use the MoveToPixel acquisition, have you given clear instructions on the FC and in the OB comment section as to how the field should be centered ?
N/A