README web version of /home/usg/OPS/MTS/readme_xml/readme_82062700

Principal Investigator Email Address

• skraus@mpifr-bonn.mpg.de

Estimated Total Execution Time (hours, including overheads)

• 12.9

General Description

• We aim to measure the geometry of the circumstellar material around a
   sample of 11 T Tauri and Herbig Ae/Be stars.  Using AMBER's MR-K mode and FINITO
   fringe tracking, we want to measure the visibility both in the K-band continuum
   as well as in the Brackett-Gamma 2.1661 micron emission line.
  
  As DIT, we have specified the recommended value of 0.5s.  If necessary, please adjust
   this value to the given atmospheric conditions and to the FINITO performance (using
   the same DIT for the calibrator and science OB).
  
  *** PLEASE NOTE FOR SCI_TTauN:
  TTauN (V=9.6, H=6.2, K=5.7) has two fainter companions at a separation of 0.7" in
   a southern direction (PA=185 deg; Delta-K approx 3.5 mag for both components; companions
   invisible at visual wavlengths; see Koehler et al. 2008).  Please center the AMBER
   fiber on the brighter/northern component.  We have prepared a second finding chart
   showing TTauN and its close companions at higher resolution (taken with AO).
  
  *** PLEASE NOTE FOR SCI_MWC166:
  MWC166 has a fainter companion at a separation of 0.65" (PA=298 deg; Delta-V=1.4
   mag; see Tjin A Djie et al. 2001).  Please center the AMBER fiber on the brighter/eastern
   component.
  
  *** PLEASE NOTE FOR SCI_AS205A:
  AS205A has a slightly fainter companion at a separation of 1.3" (PA=212 deg; Delta-V
   approx. 1.5 mag; Delta-K=0.8 mag; see Koresko et al. 2002).  Please center the AMBER
   fiber on the brighter/northern component.  We have prepared a second finding chart
   showing AS205A and its close companion at higher resolution.
  
  The calibrators and their characteristics are:
  
  HD 285669, K0     UD diameter=0.59  +/- 0.04  mas (CHARM)
  HD 36059, G5,     UD diameter=0.549 +/- 0.038 mas (ASPRO)
  HD 47127, G5,     UD diameter=0.421 +/- 0.029 mas (ASPRO)
  HD 55137, G5,     UD diameter=0.341 +/- 0.024 mas (ASPRO)
  HD 58461, F5V,    UD diameter=0.478 +/- 0.033 mas (ASPRO)
  HD 85313, G8III,  UD diameter=0.462 +/- 0.032 mas (ASPRO)
  HD 101531, K1III, UD diameter=0.73  +/- 0.01  mas (CalVin)
  HD 145921, K2III, UD diameter=0.943 +/- 0.065 mas (CalVin)
  HD 144585, G1.5V, UD diameter=0.493 +/- 0.034 mas (ASPRO)
  HD 153363, F3V,   UD diameter=0.478 +/- 0.033 mas (ASPRO)

Waiver Requests

• In the webletters for this run, three of the proposed targets (MWC~758,
   CQ~Tau, NX~Pup) were marked as technically not feasible for VLTI/AMBER.  Therefore,
   we send a TargetChangeRequest, in which three replacement targets were approved
   (MWC~166, AS205A, MWC~863, approved on 2008-07-25).

Critical Observing Condition Constraints

• None.

Time-Critical Aspects

• None.

Special Execution Requirements

• None.

Special Calibration Information

• None.

ToO Information

• None.

ToO Activators List

• None.

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• None.

Source(s) of Pre-imaging

• ---(Empty)---

Pre-imaging sources not listed above

• ---(Empty)---

Do all your OBs comply with the instrument-specific requirements listed
 on the instrument-specific Phase 2 web page ?

• YES

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 ?

• YES

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 ?

• N/A

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

Did you indicate for each science star OB the corresponding calibrator
 star OB (and vice versa) in the 'Instrument Comments' field ?

• YES

Did you check that your chosen calibrator is bright enough for the instrument
 mode used ?

• YES

If you use calibrator stars which are not in the CalVin database, did
 you specify their characteristics in the README file and in the OBs ?

• YES

Do you use the same DIT for pairs of science target and associated calibrator?

• YES

Are the magnitudes of science target and calibrator within +/- 1 mag
 ?

• YES

Did you verify that your coordinates are as accurate as possible (2Mass
 coordinates recommended) and that they include proper motions if available ?

• YES

Did you specify the LST range of the calibrators such that they cover
 the range from 30 min before the start of the LST range of the science target to
 30 min after the end of the LST range of the science target ?

• YES