P69-014: Unlocking the power of fast-evolving tidal disruption events with NOT

PI: Charlotte Angus

Summary:

ToO triggers

All observations will be spectroscopic using ALFOSC with grism #4 and a 1.0 or 1.3" slit. Exposure times will depend upon the transient brightness. Including overheads of ~15 minutes, the maximum OB length (i.e. for our faintest targets) will be 1.5 hours. We anticipate triggering up to 15 times during P62 (with a maximum of 5 hard triggers). Remaining triggers will be executed within NOT service mode/technical nights.

Calibrations:

Alfosc-calibs ,
standard bias and flats obtained with the same grism/slit setup as the science frames.

Observing conditions:

As this is a ToO we do not have strict constraints on the observing conditions and the observations can be executed in any lunar phase. In case of a specific observing constraints (e.g. a seeing limit for high airmass objects) for a particular observation, we will communicate this in the trigger email and the OB constraints.

Observing instructions:

The OB group to be observed on any night will appear in the Queue as a time-critical group. In a sequencer window type cd ~/scripts/69-014/ In this directory you will find the OB compiled script for each night, Run the script within the requested UT window. if the script is not available, please compile it from the OB Queue. In the OB Queue the OB groups to be observed on the current date will be high-lighted with an orange colour. Execute the OB. The OB will point the telescope, obtain an acquisition image and the requested science frames. Please check you can recognise the field by comparing it with the Finding Chart. It will be appreciated if you check that the target (marked in the finding Chart) is not saturated in the observations. If so, please repeat by reducing the exposure time accordingly.
The PI will send the target and observing information when this ToO is triggered.
To summarise:

Go to the directory
cd ~/scripts/69-014
List the available scripts
ls -lrt

and execute the OB generated scripts requested in the trigger email.

Program Tracking

Proposal 69-014

Semester P69: 20240401 - 20241001

Principal Investigator Charlotte Angus

Programme Unlocking the power of fast-evolving tidal disruption events with NOT

Instrument ALFOSC

Time Allocation ~10 triggers, ~36min/obs. 1 target, 3 epochs monitoring

Total Nights 6.0h+3.0h

Type ToO+Mon

Notes Should aim for (soft) triggers. Monitoring Fixed dates to be scheduled

Total Time Spent 00:20 (hh:mm)

Proposal Date Time Type Targets Files Comments Status

69-014 2024-04-19 00:20 ToO AT2024fxh ALHd190166 - ALHd190169 Observed

The above information is collected from the ToO/Mon reports that have been created by the observer.

Should any of the observations have been carried out using the OB system, you will find additional information HERE

Last modified: March 08 2024