Chandra X-Ray Observatory
	(CXC)
Skip to the navigation links
Last modified: December 2013

URL: http://cxc.harvard.edu/sherpa/ahelp/unpack_arf.html
Jump to: Description · Examples · Bugs · See Also


AHELP for CIAO 4.9 Sherpa v1

unpack_arf

Context: data

Synopsis

Unpack an ARF from an ARFCrate

Syntax

unpack_arf( filename|ARFCrate )

Description

The unpack_arf command unpacks an ARF from a FITS file or an ARFCrate into a Sherpa data object.

If a filename is provided as input, a crate is created but hidden and cannot be used for other analysis in the session.

  • filename|ARFCrate - the name of the file (with path) or ARFCrate which contains the ARF data

Example 1

sherpa> arf1 = unpack_arf("arf.fits")

Unpack the ARF into the object "arf1".

Example 2

sherpa> arfcr = read_arf("3c273.arf")
sherpa> arfdata = unpack_arf(arfcr)

The ARF is read into an ARFCrate (named "arfcr") from the file 3c273.arf. The ARF is then unpacked into Sherpa from the crate.

Bugs

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

See Also

data
dataspace1d, dataspace2d, datastack, fake, get_arf, get_bkg, load_arf, load_arrays, load_ascii, load_bkg, load_bkg_arf, load_bkg_rmf, load_data, load_grouping, load_image, load_multi_arfs, load_multi_rmfs, load_pha, load_quality, load_rmf, load_staterror, load_syserror, load_table, pack_image, pack_pha, pack_table, set_arf, unpack_arrays, unpack_ascii, unpack_bkg, unpack_data, unpack_image, unpack_pha, unpack_rmf, unpack_table
filtering
load_filter
info
get_default_id, list_bkg_ids, list_data_ids, list_response_ids
modeling
add_model, add_user_pars, get_response, load_table_model, load_template_model, load_user_model, save_model, save_source
plotting
plot_arf
saving
save_arrays, save_data, save_delchi, save_error, save_filter, save_grouping, save_image, save_pha, save_quality, save_resid, save_staterror, save_syserror, save_table
statistics
load_user_stat

Last modified: December 2013
Smithsonian Institute Smithsonian Institute

The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA.   Email:   cxchelp@head.cfa.harvard.edu Smithsonian Institution, Copyright © 1998-2017. All rights reserved.