|Chandra Electronic Bulletin No. 1|
******************************************************************************* | | | CCC XX XX OOO | Chandra | CC XX XX OO OO | CXC Electronic | CC XXX OO OO | Number 1 Bulletin | CC XX XX OO OO | September | CCC XX XX OOO | 2000 | | ******************************************************************************* Welcome to the Chandra X-ray Center's Electronic News Bulletin! We plan to distribute bulletins roughly once per month (or as needed) to inform interested members of the community of new developments relevant to the Chandra X-ray Observatory such as Chandra status updates, NRA Cycle information, software releases, calibration information, etc.. If you would like to unsubscribe from this alias, please let us know by filling out a Helpdesk ticket (cxc.harvard.edu and click on "Helpdesk"). Contents: 1. Cycle 3 NRA Schedule 2. Cycle 1/Cycle2 changeover date 3. New CXC HelpDesk Interface: adds Search Capability 4. New features: contributed software page, chandra-users mailing list 5. CIAO 2.0 Release News 6. Chandra Fellows Symposium ------------------------------------------------------------------- 1. Cycle 3 NRA Schedule The preliminary schedule for Chandra Cycle 3 is as follows: NRA Release: 15 Dec 2000 Proposal Deadline: 15 March 2001 Peer Review Dates: 18-20 June 2001 Results announced: 2 July 2001 The dates are earlier than originally anticipated to ensure that Cycle 3 targets are approved, reviewed and planned before we conclude the observations of targets allocated in Cycle 2. 2. Cycle 1/Cycle2 changeover date The official end of Chandra Cycle 1 is Nov 1st 2000. We note that some Cycle 2 observations may be made before this time in the interest of efficient scheduling and a few Cycle 1 observations made after this date due to scheduling constraints. After this date, Cycle 2, peer-review approved TOO observations may be triggered by filling out the form found under the `TOO' link from the `Proposer' page on the CXC website (asc.harvard.edu). Approved Cycle 1 TOO PIs should be aware that Nov 1st is the end of their window for triggering such observations. In addition, given the typical rate of one per month, we are unlikely to accept more than 1 fast (<21 day) turn-around TOO during the time remaining for this cycle. 3. New CXC HelpDesk Interface: adds Search Capability On Sept 21st, a new Helpdesk interface was installed. This new interface allows you to search the CXC HelpDesk archives and store your account details so you don't have to enter your name and email address each time you ask a question. Regular users of helpdesk are advised to set up an account (and remember their username!). A link to the Helpdesk submission form can be found at the bottom of the CXC web page (cxc.harvard.edu), The direct link is: http://cxc.harvard.edu/cgi-gen/up.cgi?AIMACTION=vlogin 4. New features: contributed software page, chandra-users mailing list The Chandra X-ray Center (CXC) is pleased to call your attention to two new capabilities intended to assist users analyze Chandra data, use the Chandra observatory and trade ideas with other users. A software exchange Web page has been established at http://cxc.harvard.edu/swapmeet_top.html that gives access both to the CIAO data analysis software produced by the CXC, and to specialized software written by individuals and contributed for use by other users. (This exchange, or swap meet, page can also be reached from the Chandra science home page at http://cxc.harvard.edu. We encourage you to check the capabilities of both CIAO and the contributed software, and also to use this page to provide your own favorite routines or tools to other Chandra users. In addition, we have created a subscribable e-mail list, called 'chandra-users', that enables participants to trade questions, answers and ideas on all aspects of the Chandra observatory and data analysis. Messages addressed to the list are sent to all subscribers, who may, in turn, reply to the list. To subscribe, send e-mail to 'firstname.lastname@example.org', and put 'subscribe chandra-users' (without quotation marks) in the body of the message (not in the Subject portion). (Note that questions about Chandra may still be sent directly to the CXC helpdesk, which can be reached via a link at the bottom of the Chandra science home page (http://cxc.harvard.edu) or directly at http://cxc.harvard.edu/cgi-gen/up.cgi?AIMACTION=Submit.) We hope you find these new features useful, and we welcome your comments and suggestions, sent to either chandra-users or the Chandra helpdesk. 5. CIAO 2.0 Release News The Chandra X-Ray Center is pleased to announce version 2.0 of the CIAO (Chandra Interactive Analysis of Observations) software package. Final testing and packing are in progress and it is expected to be distributed in Beta form for Solaris on or around November 1st. A full release for both Solaris and Linux is anticipated for December 1st. CIAO2.0 is a major milestone for the Chandra community. Combined with the reprocessed data now becoming available, and a complete set of calibration files in CALDB format, many of the early complexities of Chandra data analysis will be replaced with simple procedures. Some of the major new CIAO features are: - Sherpa enhancements include robust optimization methods, improved error calculations, and new save/restore features, as well as several options for analyzing grating data, e.g enhanced analysis of type 2 pha files, analysis in wavelength or energy space, use of multiple backgrounds, background modeling, as well as beta version of GUIDE (Grating User Interactive Data Extension) and S-lang. - GUIDE is designed for high resolution spectral analysis (e.g. line identification). GUIDE works with the line lists and emissivities created by APEC, the successor code to Raymond-Smith. [Which is backwards-compatible with earlier models, e.g. MEKAL.] - S-lang provides a scripting language that allows users to create personalized data analysis routines within Sherpa and Chips, via commmon programming control features, interactive access to data structures, and the ability to define variables and functions. - The datamodel I/O library, underlying all CIAO tools, now supports advanced filtering (e.g. multiple conditions, data flags) - Upgraded event processing tools to use the latest calibrations and include newly discovered instrumental effects. - Better response tools to help users fit spectral features and flat field their observations. The number of RMF files for ACIS has been reduced from over 4000 to 4 (1 per temperature). [The true number of RMFs has not changed, but they have been packaged more cleverly to reduce overhead for users.] - More utilities to help users view and manipulate their data. - Source detection tools now deal with exposure variations across the field. - Enhanced online help ("ahelp") which now includes context, and cross-references; and new thread-based guides (on the WWW). In tandem with CIAO2.0 will be the first external release of the Chandra Calibration Database (CALDB 2.0) and the release of the Atomic Data Base. These calibrations provide the most up-to-date understanding of the current state of the various system on board the CXO spacecraft. These tools and calibrations together with the latest reprocessed data should accelerate and expand the scientific possibilities of Chandra datasets. CIAO2.0 will initially be distributed for Solaris and various Linux platforms. An port for the Alpha is in the works and is expected after Jan 1st 2001. Please check the CXC home pages at http://cxc.harvard.edu and select "data Analysis" (direct link: http://asc.harvard.edu/ciao/) for further information. CIAO2.0 is a collaborative effort between the CXC Science Data Systems, the CXC Data Systems, and MIT/CXC personel. 6. Chandra Fellows Symposium: Oct 23rd, CfA As one who is actively involved with Chandra, you are cordially invited to enjoy some of the results. The Second Chandra Fellows Symposium is being held at the Center for Astrophysics, Cambridge, MA on Oct. 23, 2000. The program is enclosed below. We would be happy to have you join us for the Symposium. (No registration fee. Light refreshments will be served.) CHANDRA FELLOWS SYMPOSIUM October 23, 2000 Phillips Auditorium, Harvard-Smithsonian Center for Astrophysics For program updates, check: http://cxc.harvard.edu/fellows/program.html 8:45 - 9:00 a.m. Welcome 9:00 - 9:30 Keynote Speaker: Ramesh Narayan: Chandra Observations of Quiescent X-ray Binaries 9:30 - 9:50 Ann Esin: Evidence for Truncated Thin Disk in Low State of New X-Ray Nova XTE J1118+480 9:50 - 10:10 Rudy Wijnands: The Neutron Star Spin Frequency in the X-ray Transient and Eclipsing LMXB MXB 1659-298 10:10 - 10:30 Tiziana DiMatteo: Accretion onto the Supermassive Black Hole in A2199: Chandra Constraints 10:30 - 10:40 Coffee 10:40 - 11:00 Markus Boettcher: Coupled Fokker-Planck/Monte-Carlo Simulations of X-ray Spectra and Variability of Accreting Compact Objects 11:00 - 11:20 Jeremy Heyl: Neutron Star Cooling for High B Fields 11:20 - 11:40 Kristen Menou: Viscosity Mechanisms in Accretion Disks 11:40 - 12:00 Eliot Quataert: Ionization, Magneto-rotational and Gravitational Instabilities in AGN Disks 12:00 - 1:20 p.m. Lunch 1:20 - 1:40 Ming Feng Gu: Experimental Studies of X-ray Line Formation In Iron L-shell Ions: Resonant Processes and Direct Excitation 1:40 - 2:00 Jacco Vink: Thermal vs Non-thermal X-ray Emission from Young Supernova Remnants 2:00 - 2:20 Ed Moran: "Seyfert 2 Galaxies: Unification and the X-ray Background 2:20 - 2:40 Amy Barger: The Nature of the Hard X-ray Background Sources 2:40 - 3:00 David Buote: Oxygen Absorption in Cooling Flows 3:00 - 3:20 Tea 3:20 - 3:40 Jimmy Irwin: First Chandra Results From X-ray Faint Early-type Galaxies 3:40 - 4:00 David Strickland: The Cosmological Impact of Starburst-driven Superwinds 4:00 - 4:20 Eric Agol: The Eddington Ratio in Seyfert Galaxies 4:20 - 4:40 Joe Mohr: A Joint X-ray and Sunyaev-Zel'dovich Effect Analysis of the 'Cooling Flow' in Abell 478 Street parking in this area of Cambridge is very limited. (``Permit'' means Cambridge resident.) Public transportation is recommended.
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