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All-Sky Catalog of Faint EUV Sources

The All-Sky Catalog of Faint Extreme-Ultraviolet (EUV) Sources is a list of 534 objects detected jointly in the Extreme Ultraviolet Explorer (EUVE) (100 Angstrom (AA) band) All-Sky Survey and in the ROSAT X-ray Telescope (XRT) (0.25 keV band) All-Sky Survey. The joint selection criterion within a 1.5 arcminute positional tolerance permitted the use of a low count rate threshold in each survey. This low threshold was roughly 60% of the threshold used in the previous EUVE all-sky surveys, and 166 of the objects listed in this table were new EUV sources, appearing neither in the Second EUVE Source Catalog nor in the ROSAT Wide Field Camera Second Catalog. Preliminary identifications are offered for 105 of the 166 sources not previously reported in any EUV catalog: by far the most numerous (81) of the identifications are late-type (F-M) stars, while 18 are other stellar types, only 5 are white dwarfs, and none are extragalactic. The paucity of WDs and extragalactic objects may be explained by a strong horizon effect wherein interstellar absorption strongly limits the effective new-source search volume, and, thereby, selectively favors low-luminosity nearby sources over more luminous but distant objects. Notice that, with the adopted 1.5 arcminute acceptance criterion, about 50 spurious detections are expected. This Browse table was created in July 2003 based on CDS table IX/35/faint.dat. This is a service provided by NASA HEASARC .

PVO VENUS ELECT TMP PROBE RESAMP SOLAR EUV 24 HR AVG VER 1.0

The Solar EUV Daily Values File. This file gives the magnitude of the photoemission current from the radial probe, Ipe, (in units of 10-9 amps). Ipe dominates the ion current measurements outside the Venusian ionosphere, making possible the serendipitous measurement of the total solar EUV flux. The latter is an important parameter because solar EUV is the main source of ionization and heating for the Venusian thermosphere and ionosphere.

EUVE Right Angle Program, 3rd Catalog

The Third Extreme Ultraviolet Explorer (EUVE) Right Angle Program (RAP) Catalog contains information on the detection of 76 extreme ultraviolet (EUV) sources, of which 63 are new detections, using the EUVE's RAP data. This catalog concentrates on observations made in the last years of the RAP, 1999 and 2000, with a sky coverage of 7% of the sky. The EUVE RAP used the all-sky survey telescopes (also known as "scanners"), which were mounted at right angles to the Deep Survey and Spectrometer instruments, to obtain photometric data in four wavelength bands centered at 100 Angstroms (Lexan/Boron or "Lexan"), 200 A (Al/Ti/C or "Al/C"), 400 A (Ti/Sb/Al or "Dagwood"), and 600 A (Sn/SiO or "Tin"). The EUVE RAP3 Catalog contains source count rates and probable source identifications from the available catalogs and literature. The source distribution is similar to previous EUV catalogs with 5 (8%) early-type stars, 23 (37%) late-type stars, 1 (2%) white dwarf, 1 (2%) cataclysmic variable, 4 (6%) extragalactic objects, 22 (35%) with no firm classification, and 7 (11%) with no optical identification. This final RAP Catalog, combined with the EUVE All-Sky Survey, the Lampton et al. (1997, ApJS, 108, 545) Faint EUV Source List, and previous RAP Catalogs, brings the total number of EUV sources to nearly 1200. This table was created by the HEASARC in September 2011 based on an ASCII version of Table 1 from the reference paper which was obtained from the AJ web site. This is a service provided by NASA HEASARC .

MAVEN EUV Calibrated Data Bundle

This bundle contains fully calibrated MAVEN EUV solar irradiances in three instrument bandpasses. Provided by the EUV team in CDF files.

EUVE Second Source Catalog

This is the 2nd Catalog of EUV objects detected by the Extreme Ultraviolet Explorer (EUVE) and published by Bowyer et al. in 1996 (ApJS, 102, 129). The data include (i) all-sky survey detections from the initial 6-months scanner survey phase, (ii) additional scanner detections made later during specially programmed observations designed to fill in low-exposure sky areas of the initial survey, (iii) sources detected with deep-survey telescope observations along the ecliptic plane, (iv) objects detected by the scanner telescopes during targeted spectroscopy observations, and (v) other observations. Plausible optical, X-ray, radio, and/or UV identifications are available for about 65% of the EUV sources. The EUVE all-sky survey detections (indicated by detect_mode = EASS in this catalog) comprise 514 detected EUV-emitting objects, the deep-survey detections (indicated by detect_mode = DS in this catalog) comprise 35 detected objects, and the sources detected during other phases of the mission (indicated by detect_mode = OTHER in this database) comprise 188 detected objects. Notice that 3 deep survey objects were also detected in the all-sky survey. Most of the sources detected in the other phases principally comprise those detected in deep exposures with the scanner telescopes as part of the Right Angle Program through December 24, 1994, or in long exposures with the deep survey instrument. Because these latter objects were observed with a variety of instruments and exposure strategies, the flux limits and detection thresholds vary over a wide range, and the Bowyer et al. reference should be consulted for more details. Some of the EUV sources have alternative cross-identifications at other wavelengths suggested for them. Notice that, in such cases, we have followed the original catalog and listed separate entries for each alternate identification. For example, the EUV-emitting object EUVE J1147+202 is listed twice, once with the suggested ID of DQ Leo, and a second time with the suggested ID of BD +21 2357. Thus, there are 801 entries in this database corresponding to 737 unique EUV sources. This is a service provided by NASA HEASARC .

EUVE Right Angle Program, 1st Catalog

This table contains the detections of 114 extreme-ultraviolet (EUV; 58 - 740 Angstrom) sources, of which 99 are new serendipitous sources, based on observations covering approximately 8% of the sky which were made with the imaging telescopes on board the Extreme Ultraviolet Explorer (EUVE) during the Right Angle Program (RAP). These data were obtained using the survey scanners and the Deep Survey instrument during the first year of the spectroscopic guest observer phase of the mission, from January 1993 to January 1994. The data set consists of 162 discrete pointings whose exposure times are typically two orders of magnitude longer than the average exposure times during the EUVE all-sky survey. Based on these results, the authors expect that EUVE will serendipitously detect approximately 100 new EUV sources per year, or about one new EUV source per 10 square degrees, during the guest observer phase of the EUVE mission. New EUVE sources of note include one B star and three extragalactic objects. The B star (HR 2875, EUVE J0729 - 38.7) is detected in both the Lexan/B (approximately 100 A) and Al/Ti/C (approximately 200 A) bandpasses, and the detection is shown not to be a result of UV leaks. The authors suggest that they are detecting EUV and/or soft x rays from a companion to the B star. Three sources, EUVE J2132+10.1, EUVE J2343-14.9, and EUVE J2359-30.6 are identified as the active galactic nuclei MKN 1513, MS2340.9-1511, and 1H2354-315, respectively. Some of the EUV sources have two or more alternative source identifications suggested for them in this catalog. Notice that, in such cases, the HEASARC has followed the structure of the original catalog as given in Table 2 of the reference paper, and lists separate entries for these alternative identifications. Thus, there are 152 entries in this database table, corresponding to 114 EUV sources. The characteristics of the 6 EUVE filters are listed in Table 1 of the reference paper (q.v.). This table was created by the HEASARC in February 2013 based on an electronic version of Table 2 from the reference paper which was supplied by Damian Christian (many thanks, Damian!) and extensively edited by the HEASARC, mostly to conform with the printed version. In 4 cases, the printed table was clearly incorrect, and a trailing 'B' from the alt_id_name was transposed to the type field. We have corrected these errors thus: <pre> Printed table As corrected in this table alt_id_name type alt_id_name type HD 22468 B ? HD 22468 B ? IDS 04199+1543 B ? IDS 04199+1543 B ? HD 29763 B ? HD 29763 B ? IDS 05264-0341 B ? IDS 05264-0341 B ? </pre> Because of the amount of hand-editing which was done, the user should treat the contents of this table with some caution and should cross-check its contents with the printed table. This is a service provided by NASA HEASARC .

Master EUV Catalog

The EUV database table is the Extreme Ultraviolet (EUV) Master Catalog and contains a compendium of EUV sources. It is comprised of selected fields from the following HEASARC EUV database tables: <pre> * <a href="/W3Browse/all/euvebsl.html">EUVEBSL</a> - First Extreme UltraViolet Explorer Bright Source List * <a href="/W3Browse/all/euvecat2.html">EUVECAT2</a> - Second Extreme UltraViolet Explorer Source Catalog * <a href="/W3Browse/all/roswfc2re.html">ROSWFC2RE</a> - ROSAT Wide Field Camera 2RE Catalog * <a href="/W3Browse/all/rosatxuv.html">ROSATXUV</a> - ROSAT Wide Field Camera Pointed Phase Catalog of XUV Sources * <a href="/W3Browse/all/euverap1.html">EUVERAP1</a> - First Extreme UltraViolet Explorer Right Angle Program Catalog * <a href="/W3Browse/all/euverap2.html">EUVERAP2</a> - Second Extreme UltraViolet Explorer Right Angle Program Catalog * <a href="/W3Browse/all/euverap3.html">EUVERAP3</a> - Third Extreme UltraViolet Explorer Right Angle Program Catalog * <a href="/W3Browse/all/euvexrtcat.html">EUVEXRTCAT</a> - All-Sky Catalog of Faint EUV Sources </pre> Notice that we have not included EUVECAT1 (First Extreme UltraViolet Explorer Source Catalog) and WFCBSC (ROSAT Wide Field Camera Bright Source Catalog), as these are obsolete catalogs superceded by EUVECAT2 and ROSWFC2RE, respectively. The EUVEBSL database table contains a detailed list of verified bright EUVE sources detected during the survey phase of the EUVE mission (calibration targets are also included). Two distinct surveys, the all-sky and deep surveys, were conducted by the four EUVE telescopes during the first six months of the mission. EUVEBSL contains 356 sources. EUVECAT2 is the 2nd Catalog of EUV objects detected by the Extreme Ultraviolet Explorer (EUVE) and published by Bowyer et al. in 1996 (ApJS, 102, 129). The data include (i) all-sky survey detections from the initial 6-months scanner survey phase, (ii) additional scanner detections made later during specially programmed observations designed to fill in low-exposure sky areas of the initial survey, (iii) sources detected with deep-survey telescope observations along the ecliptic plane, (iv) objects detected by the scanner telescopes during targeted spectroscopy observations, and (v) other observations. Plausible optical, X-ray, radio, and/or UV identifications are available for about 65% of the EUV sources. EUVECAT2 contains 801 sources. ROSWFC2RE is the ROSAT Wide Field Camera 2RE Source Catalog. It contains 479 EUV sources found during the ROSAT all-sky survey of July 1990 to January 1991. The information in this database is based on what has been published by Pye et al. (1995, MNRAS, 274, 1165). It supersedes the earlier WFC Bright Source Catalog (WFCBSC), but we have retained the latter in the EUV database for reasons of completeness The ROSATXUV database table is a catalog of XUV sources (Kreysing H.C., Brunner H., and Staubert, R. 1995, A&AS, 114, 465), extracted from observations by the ROSAT Wide Field Camera during the pointed phase. The 5916 WFC pointed observations that were included are from the calibration and verification phase in June 1990 and from the period of pointed observations from February 9, 1991 to July 15, 1994. The catalog contains 1022 independent source detections corresponding to 4 different filters (S1, S2, P1 and P2) and 328 individual sources, many of which were observed repeatedly. Only ROSATXUV detections in the S1 filter band are included in the EUV table. If there are multiple observations of a single source/position in ROSATXUV, then only one entry for that source will be present in the EUV Master Catalog. The EUVERAP1 database table contains the detections of 114 extreme-ultraviolet (EUV; 58 - 740 Angstrom) sources, of which 99 are new serendipitous sources, based on observations covering approximately 8% of the sky which were made with the imaging telescopes on board the Extreme Ultraviolet Explorer (EUVE) during the Right Angle Program (RAP). These data were obtained using the survey scanners and the Deep Survey instrument during the first year of the spectroscopic guest observer phase of the mission, from January 1993 to January 1994. The data set consists of 162 discrete pointings whose exposure times are typically two orders of magnitude longer than the average exposure times during the EUVE all-sky survey. The EUVERAP2 database table is a catalog of 235 extreme ultraviolet (EUV) sources, of which 169 are new detections, using the EUVE Observatory's Right Angle Program (RAP) data obtained with the A, B and C scanners and the Deep Survey (DS) instrument in the period from January 1994 through November 1998. The EUVE RAP used the all-sky survey telescopes (also known as the "scanners"), which were mounted at right angles to the Deep Survey and Spectrometer (DS/S) instruments, in order to obtain photometric data

MAVEN EUV Modelled Data Bundle

This bundle contains solar irradiance spectra in 1-nm bins from 0-190 nm. The spectra are generated based upon the Flare Irradiance Spectra Model - Mars (FISM-M) using the EUV calibrated band irrandiance and interpolated Earth-based solar indices and measurements as proxies. The data were provided by the MAVEN EUV team in CDF format.

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MAVEN EUV Bundle

This bundle contains MAVEN EUV Documentation.

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GALILEO ORBITER EUV JUPITER OPERATIONS EDR DATA

TBD

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MAVEN EUV Calibrated Data Bundle

This bundle contains fully calibrated MAVEN EUV solar irradiances in three instrument bandpasses. Provided by the EUV team in CDF files.

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PVO VENUS ELECT TMP PROBE RESAMP SOLAR EUV 24 HR AVG VER 1.0

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MAVEN EUV Modelled Data Bundle

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GALILEO ORBITER EUV JUPITER OPERATIONS EDR DATA

TBD

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MAVEN EUV Bundle

This bundle contains MAVEN EUV Documentation.