Chandra X-Ray Observatory
	(CXC)

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Chandra Electronic Announcement #99
CHANDRA ELECTRONIC ANNOUNCEMENT NUMBER 99

Contents:
CalDB 4.6.1 Released
Version 4.6.3 of the Contributed Scripts and Modules tarfile has been released
Registration and abstract submission are open for the summer 2014 Chandra-sponsored Science Workshop
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Item 1: CalDB 4.6.1 Released
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As of March 26th the CXC has released Chandra CalDB version 4.6.1,
which includes the following upgrades:

ACIS T_GAIN Epoch 56
ACIS Secondary BADPIX File FP_TEMP Boundary Correction
HRC-I Background Event Lists Version 2
HRC-I/S RMF EBOUNDS Header Corrections
ACIS and HRC PSFLIB RETIRED!


For information and technical details on the specific upgrades, see
the CalDB 4.6.1 release notes at 
http://cxc.cfa.harvard.edu/caldb/downloads/releasenotes.html

See also "How CalDB 4.6.1 Affects Your Analysis" at
http://cxc.cfa.harvard.edu/ciao/releasenotes/ciao_4.6.1_release.html#HowCALDB4.6.1AffectsYourAnalysis

To download and install CalDB 4.6.1 on your system, you may use the ciao-install script available at the CIAO web page:
http://cxc.cfa.harvard.edu/ciao/download/

Manual download and installation instructions are also available at
http://cxc.cfa.harvard.edu/caldb/downloads/

As always, please send questions and requests for enhancements to the CXC HELPDESK
(http://cxc.harvard.edu/helpdesk/).

Cheers,
Dale Graessle
Chandra CalDB Manager

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Item 2: Version 4.6.3 of the Contributed Scripts and Modules tarfile has been released
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Version 4.6.3 of the Contributed Scripts and Modules tarfile has been
released and can be downloaded and installed using the same
ciao-install script as used to update the CALDB
[http://cxc.harvard.edu/ciao/download/]. The release includes:

A new script has been added: ecf_calc calculates the enclosed count
fraction of a source as a function of radius. The ciao_contrib.runtool
Python module has been updated to include this routine.

Changes to fluximage:

  - when subtracting the particle background from HRC-I data, the un-subtracted
    and background counts images are retained when cleanup=no.

  - when cleanup=yes, all the instrument-map files are now deleted when
    multiple bands are specified

A bug has been fixed in the chips_contrib.helix Python module that
meant that the start, hue, gamma, and nlev arguments were being
ignored.

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Item 3: Registration and abstract submission are open for the summer 2014 Chandra-sponsored Science Workshop
----------------------------------------------------------------------

Registration and abstract submission are open for the summer 2014 Chandra-sponsored Science Workshop

           The X-ray View of Galaxy Ecosystems

to take place
             July 9 - 11, 2014
at the
       DoubleTree Guest Suites in Boston, MA.

Please check the website at
        http://cxc.harvard.edu/cdo/xgal14/
for information.

           ------ DEADLINES ------

Friday, April 25, 2014: Final deadline for contributed talk abstract
submission

Friday, May 23, 2014: Final deadline for general registration and
poster abstract submission

Saturday, June 14, 2014: Final deadline for hotel reservations at
group rate, and for all requests for letters of invitation

         ------ MEETING ABSTRACT ------

         The X-ray View of Galaxy Ecosystems

X-ray observations are providing exciting results about the formation
and evolution of galaxies, bringing new insight into the interplay
between galaxies and the diverse physical components of which they are
composed, and with which they interact. This workshop focuses on the
physics occurring within and around galaxies, with a particular
emphasis on diffuse hot gas, but including galactic nuclei, the growth
of SMBH, stellar/AGN feedback, stars and star formation, and
environmental effects (e.g., stripping, mergers). The goals of this
workshop are to bring together observers and theorists to review what
we have learned in the last decade and to identify important but
unsolved problems whose solution could significantly improve our
understanding of galaxies, looking towards the most effective use of
X-ray observatories in the next decade.
----------------------------------------------------------------------

Last modified: 03/26/14

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