Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
obs_data [2023/06/12 08:18]
theoastro [Electromagnetic data] 		obs_data [2023/06/16 10:24] (current)
theoastro
Line 6: Line 6:
 Observatories provide observational data as a measured flux or as spectral flux density which needs to be converted to the AB magnitude system in order to be used within NMMA. It is important to distinguish between different spectral filters in order to run a consistent analysis. Current available filters can be checked in [[https://github.com/nuclear-multimessenger-astronomy/nmma/blob/538326458e1e6101389e9861ff6bf19bc93fa070/nmma/em/utils.py#L48|utils.py]]. A specific flux or respective magnitude measurement comes along with a specific time stamp which needs to be in the **ISOT time format**. For further details, see [[https://docs.astropy.org/en/stable/api/astropy.time.TimeISOT.html|here]]. Observatories provide observational data as a measured flux or as spectral flux density which needs to be converted to the AB magnitude system in order to be used within NMMA. It is important to distinguish between different spectral filters in order to run a consistent analysis. Current available filters can be checked in [[https://github.com/nuclear-multimessenger-astronomy/nmma/blob/538326458e1e6101389e9861ff6bf19bc93fa070/nmma/em/utils.py#L48|utils.py]]. A specific flux or respective magnitude measurement comes along with a specific time stamp which needs to be in the **ISOT time format**. For further details, see [[https://docs.astropy.org/en/stable/api/astropy.time.TimeISOT.html|here]].
  
-**Example: Data file for kilonova AT2017gfo**+**Example: Some data for kilonova AT2017gfo** 
 +  2017-08-18T00:00:00.000 g 17.41000 0.02000 
 +  2017-08-18T00:00:00.000 r 17.56000 0.04000 
 +  2017-08-18T00:00:00.000 i 17.48000 0.03000 
 +  2017-08-18T00:00:00.000 z 17.59000 0.03000
  
- +The first column represents the ISOT time, followed by the filter or spectral regime in the second column, the measured AB magnitude and its respective error are given in the third and fourth column. This data structure detailed above is also applicable for other astrophysical sources (SNe, GRBs) or models implemented in NMMA. 
-==== Gravitational wave data ==== +
- +
-Observational gravitational-wave data such as for GW170817 is available (if publicly released) under:+
Last modified: le 2023/06/12 08:18

Page Tools