README web version of /home/usg/OPS/MTS/readme_xml/readme_83078700

Principal Investigator Email Address

• fran@arcetri.astro.it

Estimated Total Execution Time (hours, including overheads)

• 3.2

General Description

• A crucial problem in star formation is to understand the physical mechanism
   by which mass is accreted onto and ejected by a young star, then collimated into
   jets. Here, we want to use AMBER+FINITO+UTs in its high spectral resolution mode
   to probe the structure and the kinematics at sub-AU scales of the inner hot gas
   surrounding the Herbig Ae star HD163296, and emitting in the Brackett Gamma line
   (2.166 microns). AMBER spectrally dispersed measurements will be used to derive
   key structural parameters like the spatial extent and morphology of the different
   kinematical components of the emitting plasma. This will allow us to compare the
   properties of the gas in the inner regions and at larger scales (obtained by HST
   for example), as well as with models of jet launching and magnetospheric accretion.
    
  
  Here, we ask for one calibrated point on HD163296 with two UTs configurations (UT234
   and UT134). For each point, we ask for an additional 30 minutes of integration on
   the target, ie a total of 1h05 on the target and 35min on the calibrator per configuration.
   
  
  We put a DIT of 4s because 3s may be not enough, considering the recommandations
   from AMBER manual, the limiting magnitude (in K, 4.8) and because the continuum
   will be very resolved at long baselines. Nevertheless, we expect the visibility
   in the line to be much higher, therefore we consider that 6s is a DIT too high.
   4s should be a good compromise, and the Brackett Gamma line should be seen by eye
   on the AMBER detector image. Of course, the best DIT depends on the weather conditions.
  
  Finally, we would appreciate if all correspondances concerning the run are sent
   both to Francesca Baccciotti (PI) and Myriam Benisty (co-I, benisty@arcetri.astro.it).

Waiver Requests

• No Waiver Request was submitted

Critical Observing Condition Constraints

• No critical observing conditions

Time-Critical Aspects

• No time-critical aspects

Special Execution Requirements

• No special execution requirements

Special Calibration Information

• Our calibrator HD163955 was chosen with SearchCal (JMMC, ASPRO), and its
   diameter is 0.404+-0.028.

ToO Information

• ---(Empty)---

ToO Activators List

• ---(Empty)---

Is this a Pre-imaging run ?

• false

Pre-imaging Requirements

• ---(Empty)---

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 ?

• YES

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