Chandra Data Archive Data Distribution Notice ======================== 2012-08-15 We are pleased to provide you in this directory with the current default version of the data pertaining to the Chandra X-ray Observatory's observation with ObsId 6533. It was processed with CXC software version 8.4.3.1, using CalDB version 4.5.1.1. Detailed information about this observation may be found at: http://cda.harvard.edu/srservices/ocatDetails.do?obsid=6533 We would like to especially draw your attention to the following three considerations when you prepare a publication based on these data: - Data References - High-Level Science Data Products - Acknowledgment Data References --------------- Please include a list of the ObsIDs and/or Dataset Identifiers for the data reported in your manuscript to ensure that archive users can easily find and cite your results. The Dataset Identifier for this particular observation is: ADS/Sa.CXO#obs/06533 It can be inserted in a LaTeX manuscript using AASTeX as: \dataset [ADS/Sa.CXO#obs/06533] {Chandra ObsId 6533} or in any manuscript as a footnote providing the following URI: ivo://ADS/Sa.CXO#obs/06533 If you include the results from a large number of observations in your article you may want to ask CDA Operations to assign a customized defined dataset identifier: http://cxc.cfa.harvard.edu/cgi-gen/cda/specreq See also: http://cxc.cfa.harvard.edu/cda/datasetid.html High-Level Science Data Products -------------------------------- The Chandra Data Archive is happy to serve as a persistent data repository for valuable high-level data products and make these datasets citable in the literature. This includes the data behind any figures or tables in your published articles. See: http://cxc.cfa.harvard.edu/cda/contributedsets.html Acknowledgment -------------- Authors of publications which use Chandra data (whether new or archived) are asked to include an acknowledgment similar to the following: For articles by a PI team: The scientific results reported in this article are based on observations made by the Chandra X-ray Observatory. For articles based on archival data: The scientific results reported in this article are based [if applicable: in part or to a significant degree] on data obtained from the Chandra Data Archive. For articles based on published results: The scientific results reported in this article are based [if applicable: in part or to a significant degree] on observations made by the Chandra X-ray Observatory and published previously in cited articles. Or any combination of these. Please include a grant number if the research was supported by a Chandra Award. For your convenience we append the current guidelines for Chandra Science Publications that can also be found at: http://cxc.cfa.harvard.edu/cdo/scipubs.html With kindest regards, - Chandra Data Archive Operations arcops@head.cfa.harvard.edu --------------------------------------------------------------------- Guidelines for Chandra Science Publications =========================================== * Acknowledgment of the Use of Chandra o Funding o Data o Software * Linking Data and Publications * Chandra-Related PhD Theses * Chandra-Discovered Source Naming Convention Acknowledgment of the Use of Chandra ------------------------------------ Funding All publications of material based on or developed under a Chandra Award must carry an acknowledgment of the Chandra Program as below, incorporating the relevant Chandra Award Number. Such numbers usually begin with GO, AR, TM or DD. "Support for this work was provided by the National Aeronautics and Space Administration through Chandra Award Number ______ issued by the Chandra X-ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of the National Aeronautics Space Administration under contract NAS8-03060." All releases of photographic or illustrative data products should include the following acknowledgment on the credit line: "Photograph [or illustration, figure, etc.] courtesy of the Chandra X-ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory on behalf of NASA, and [the Principal Investigator's Institution]." (Text reproduced from the Chandra Grants Terms and Conditions, Section XV) Data Authors of publications which use Chandra data (whether new or archived) are asked to include an acknowledgement similar to the following: The scientific results reported in this article are based [if applicable: in part or to a significant degree] on observations made by the Chandra X-ray Observatory [for articles by the PI team], data obtained from the Chandra Data Archive [for articles based on archival data], observations made by the Chandra X-ray Observatory and published previously in cited articles [for articles based on published results]. Please also include a list of the ObsIDs and/or Dataset Identifiers for the data reported in your manuscript to ensure that archive users can easily find and cite your results (see Linking Data section below). Software Please acknowledge in the acknowledgment section of any resulting publications use of CXC software. This will help greatly to keep track of software usage, etc. As an example, the following language is suggested (to be adapted as applicable, of course): "This research has made use of software provided by the Chandra X-ray Center (CXC) in the application packages CIAO, ChIPS, and Sherpa." Linking Data and Publications ----------------------------- The Chandra archive is at the forefront of efforts to ensure that archived data and any publications that report on that data are directly linked. This information is crucial for data mining tools and research aids that exploit the combined information of observations and their publication. To ensure that your publications are clearly available for archive users, please be sure to list the actual ObsIds or Dataset Identifiers in your manuscript. Benefits of including this information: * archive users will have easy access to published analysis of the data in which they are interested * articles with embedded data links receive a larger number of citations * enables archive searches for Chandra related papers (CRP) by PI, ObsId e.g., for the Previous Chandra Programs section of your Chandra proposals * allows scientists (e.g. proposal reviewers) to seek information on a person's CRPs * enhances utility of combined data archive/publication research tools, like http://cxc.harvard.edu/cgi-gen/cda/bibliography * facilitates an accurate count of all CRPs see http://cxc.harvard.edu/cda/bibstats/bibstats.html To find and/or report unlisted CRPs: * are all your CRPs included in the bibliography? o check at: http://cxc.harvard.edu/cgi-gen/cda/bibliography or o search in ADS for your CRPs (check Chandra under Select References In:) * inform CXC of your unlisted CRPs: email bibcodes for your missing CRPs to Chandra Data Archive (arcops@head.cfa.harvard.edu) New Publications that include Chandra data should include: * Dataset Identifiers; for details on How-to, see: http://cxc.harvard.edu/cda/datasetid.html * grant numbers, e.g., CXC grant numbers beginning with GO, AR, TM, or DD. This is especially important for papers associated with archive and theory grants, since it is the only way these papers can be linked * facility keywords: "CXO" for Chandra; for usage, see: http://aas.org/journals/aastex/facilities Chandra-Related PhD Theses -------------------------- We are collecting information about student involvement with Chandra science so that we have a quantitative estimate of this part of the program. If you have been PI on a Chandra program that was analyzed as part of a PhD thesis, or if your own thesis involved Chandra-related research, please check to make sure that it has been recognized and counted. If you or someone you know of has completed a PhD thesis with a substantial Chandra component that is *not* already listed in ADS or at http://cxc.harvard.edu/cdo/phd_papers.html please let us know at cxchelp@head.cfa.harvard.edu, providing as much information as you have: author name, title, institution, year, advisor name, and abstract and/or a link to the thesis. Chandra-related Theses should also be retrievable from the ADS search page http://adsabs.harvard.edu/abstract_service.html as follows: 1. In the 'Filters' section of the page, in the box called "Select/deselect publications:", type in "PhDT" 2. Farther down in the Filters section, under "Select References In:", select "All of the following (AND):" and then check the Chandra box 3. Press the "Send Query" button, and look for the thesis of interest in the results Chandra-Discovered Source Naming Convention ------------------------------------------- The IAU Clearing House has approved the use of three acronyms for use in designation of sources found with the Chandra X-ray Observatory. * CXO (Chandra X-ray Observatory) is reserved for designating sources from Chandra X-ray Center projects of an institutional nature * CXOAA, CXOAAA, and CXOAAAA (where "AA", "AAA", and "AAAA" are to be replaced by characters chosen by the author) are available for comprehensive source lists obtained from Chandra observations and made by individuals who pre-register the acronym using the IAU form at http: //cdsweb.u-strasbg.fr/viz-bin/DicForm where they indicate the meaning of the appended 'A' characters, which are usually the initials of the author(s) * CXOU, where 'U' means "unregistered", may be used for the occasional sources found/published by individuals using Chandra X-ray Observatory data Sample full name (unregistered): CXOU Jhhmmss.s+ddmmss (e.g. CXOU J123456.7+765432) J indicates J2000 coordinates The coordinates should be truncated and are then accurate to 1.5", 1" for RA, Dec respectively Please Note: The coordinate information in source names is obtained by truncating the coordinate values. That means, for instance, that, in a catalog using acronym CXOXYZ and the same number of digits as CXOU, the source with coordinates: RA = 12h 34m 56.789s, Dec = 12d 34' 56.789" will have the name: CXOXYZ J123456.7+123456 This is a universal rule that applies to all source acronyms registered with the IAU Clearing House.