✓ XMM-SLEW at 187.277 25.985
Upper limit significance
Spectral model for flux conversion
This web client returns measured count rates and upper limits from X-ray missions in standard energy bands, as supported by the mission instrumentation. Instrument count rates are converted into an in-band flux using a spectral model which may be selected by the user. Progress is registered by a widget which shows the percentage of missions which have finished processing. If the tool hangs then it can be restarted by refreshing the page.
A full description of the upper limit server and how values are calculated for the different missions can be found here
Click on the mission(s) you wish to use. The mission will be selected if the font is white, and not selected if the font is gray. The tool uses the following data:
All data for missions which have ceased to operate
All public data for XMM-Newton taken by the EPIC-pn telescope. This is typically, all calibration data, all data taken during slews and science data older than 1 year.
Swift-XRT: observations from launch until 2012
INTEGRAL: One value is returned, for each energy band, integrated over all data available from launch until 2017
Select what kind of input you wish to use: Target name, Coordinates or Input file.
The Coordinates may be entered in either decimal degree or sexagesimal.
14 46 00 +68 16 24
The files uploaded should be an ASCII file with one position per line and optionally a source name or identifier. RA, DEC and the (optional) source name must be spaced by a blank, and be in decimal degrees e.g.
311.0406 -10.7235 MKN 509
33.6398 -0.7667 MKN590
Modify the parameters in the Parameters box below
Press SUBMIT button
Select the parameters according to your preferences for the output. The options available depend on the missions you have selected and on the rest of the parameters.
By default, all energy ranges available to a mission are selected. These can be turned off by pressing on the energy range.
A spectral model should be selected for converting instrument count rate into flux. The options are an absorbed power-law or black-body. The energy slope of the power-law or temperature of the black-body may be selected from a number of options. Similarly, the absorbing column in square centimetres may be chosen.
This tool makes use of data from the following locations:
The XMM-Newton science archive (https://www.cosmos.esa.int/web/xmm-newton/xsa)
Catalogue servers and instrument data files hosted at NASA's High Energy Astrophysics Science Archive Research Center (HEASARC; https://heasarc.gsfc.nasa.gov/).
A server for fluxes and upper limits from the Neil Gehrels Swift Observatory X-ray telescope (Swift-XRT) hosted at the UK Swift Science Data Centre (http://www.swift.ac.uk/1SXPS/processUL_JSON.php)