- ID:
- ivo://org.gavo.dc/wise/q/s
- Title:
- WISE All-Sky Release Catalog SCS
- Short Name:
- WISE scs
- Date:
- 27 Dec 2024 08:31:05
- Publisher:
- The GAVO DC team
- Description:
- The Wide-field Infrared Survey Explorer (WISE) is a space-based imaging survey of the entire sky in the 3.4 (W1), 4.6 (W2), 12 (W3), and 22 (W4) μm mid-infrared. This is the project's reliable Source Catalog containing accurate photometry and astrometry for over 500 million objects. More details are available in the `Explanatory Supplement`_, which also has a list of `Cautionary Notes`_. .. _Explanatory Supplement: http://wise2.ipac.caltech.edu/docs/release/allsky/expsup/sec1_1.html .. _Cautionary Notes: http://wise2.ipac.caltech.edu/docs/release/allsky/expsup/sec1_4b.html
Number of results to display per page
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- ID:
- ivo://wfau.roe.ac.uk/wise-dsa
- Title:
- WISE (Wide-field Infrared Survey Explorer)
- Date:
- 04 Dec 2019 13:43:24
- Publisher:
- WFAU, Institute for Astronomy, University of Edinburgh
- Description:
- NASA's Wide-field Infrared Survey Explorer (WISE; Wright et al. 2010) mapped the sky at 3.4, 4.6, 12, and 22 μm (W1, W2, W3, W4) in 2010 with an angular resolution of 6.1", 6.4", 6.5", & 12.0" in the four bands. WISE achieved 5Ï? point source sensitivities better than 0.08, 0.11, 1 and 6 mJy in unconfused regions on the ecliptic in the four bands. Sensitivity improves toward the ecliptic poles due to denser coverage and lower zodiacal background.
- ID:
- ivo://xaovo/liujun/liujun/q
- Title:
- XAO AGN Flux Monitoring Data
- Short Name:
- liujun_web
- Date:
- 25 Jun 2024 10:32:03
- Publisher:
- Xinjiang Astronomical Observatory,CAS
- Description:
- Active Galactic Nuclei (AGNs) are extragalactic objects characterized by extremely complex physical processes and strong temporal flux variability over almost the whole electromagnetic spectrum, which play a very important role in studying the formation and evolution of galaxies, cosmology and many other astrophysical problems. Flux variability is one of the most remarkable observational characteristics of AGNs and the variability time scales are from minutes to dozens of years. Multi-wavelength flux monitoring is the main means to study the nature of AGN flux variability. In order to systematically study the total flux variability of AGNs in radio band, we launched a long-term program, which is called the quasi- Simultaneous Multiwavelength Monitoring of AGNs with the Nanshan 26-m radio telescope of Xinjiang Astronomical Observatory (XAO), namely SMMAN program. The monitoring data were acquired monthly with the cross-scan mode at C-band (4.8 GHz) and K-band (23.6 GHz) for a sample of about 100 AGNs selected from Fermi-LAT suvery. Additionally, we also conducted weekly monitoring observations or Intra-Day Vairibility (IDV) observations for some of flaring Blazars to reveal their more complex variability time scales.
- ID:
- ivo://xaovo/__system__/services/registry
- Title:
- XAO Data Center Registry
- Short Name:
- XAO DC Reg
- Date:
- 10 Oct 2018 04:13:56
- Publisher:
- The staff at the XAO Data Center
- Description:
- The publishing registry for the XAO Data Center.
- ID:
- ivo://xaovo/cross/q/match
- Title:
- XAO DC Custom Uploading Crossmatcher
- Short Name:
- xao_crossmatch
- Date:
- 25 Jun 2024 10:32:03
- Publisher:
- Xinjiang Astronomical Observatory,CAS
- Description:
- A plain positional crossmatch service that allows file and URL uploads to be crossmatched to DC-internal tables. In general, you want to use TAP for this kind of thing when it is available, but in a pinch it might come in handy. Larger catalogues that can be matched against include GAIA,PPMXL,ATNF Pulsar Catalog, and more.
- ID:
- ivo://xaovo/pul/pulsar/q
- Title:
- XAO Pulsar Data Query
- Short Name:
- Pulsar_web
- Date:
- 02 Jan 2025 14:01:21
- Publisher:
- Xinjiang Astronomical Observatory,CAS
- Description:
- The pulsar timing data were obtained with the Nanshan 25M radio telescope. Our observations, which commenced in January 2000, have been made using a dual-channel room-temperature receiver with a bandwidth of 320 MHz centered at 1540 MHz before June 2002. The de-dispersion was provided by a 2X128X2.5 MHz analog filter-bank. A cryogenic receiver was mounted in July 2002, which increases the sensitivity to 0.5 mJy. In January 2010, a digital filter-bank (DFB) system came into operation. The higher time resolution allows us to monitor about 280 pulsars, including ten millisecond-pulsars (MSP). The format of the DFB data is "Psrfit". The "psrchive" program could reads and analyzes the data. Timing observations of 74 pulsars have been regularly carried out between 2002 July to 2009 December. These 74 pulsars have been monitored approximately once every 9d using a dual-channel cryogenic system that receives orthogonal linear polarizations at the central observing frequency of 1540 MHz. The folded profiles obtained are released in format PSRFITS for timing analysis, the file name extension is .FTp. Users can enter "~*.FTp*" in "Product key" filed to search and download it. Non-public data could be used with the permission of Dr. Shengnan Sun (sunshengnan@xao.ac.cn), please send an email for your request.
397. XAO SF Data Query
- ID:
- ivo://xaovo/wugang/wugang/q
- Title:
- XAO SF Data Query
- Short Name:
- wugang_web
- Date:
- 25 Jun 2024 10:32:03
- Publisher:
- Xinjiang Astronomical Observatory,CAS
- Description:
- The molecular spectrum lines data include mainly ammonia and water masers lines at 1.3cm band, as well as formaldehyde and recombination lines at 6cm band observed towards both our Galactic plane and nearby molecular clouds and star-forming regions.
- ID:
- ivo://wfau.roe.ac.uk/xmm_dsa
- Title:
- XMM-Newton Serendipitous Source Catalogue (2XMM)
- Short Name:
- 2XMM
- Date:
- 23 Jan 2024 09:36:54
- Publisher:
- WFAU, Institute for Astronomy, University of Edinburgh
- Description:
- XMM is the second comprehensive catalogue of serendipitous X-ray sources from the European Space Agency's (ESA) XMM-Newton observatory. The 2XMM catalogue is the largest X-ray source catalogue ever produced, containing almost twice as many discrete sources as either the ROSAT survey or pointed catalogues. 2XMM complements deeper Chandra and XMM-Newton small area surveys, probing a much larger sky area.
- ID:
- ivo://org.gavo.dc/spm4/q/cone
- Title:
- Yale/San Juan SPM4 Catalog
- Short Name:
- SPM4 CS
- Date:
- 27 Dec 2024 08:31:02
- Publisher:
- The GAVO DC team
- Description:
- The SPM4 Catalog contains absolute proper motions, celestial coordinates, and B,V photometry for 103,319,647 stars and galaxies between the south celestial pole and -20 degrees declination. The catalog is roughly complete to V=17.5. It is based on photographic and CCD observations taken with the Yale Southern Observatory's double-astrograph at Cesco Observatory in El Leoncito, Argentina.
- ID:
- ivo://org.gavo.dc/zcosmos/q/ssa
- Title:
- zCosmos Bright Spectroscopic Observations DR2
- Short Name:
- zCosmos SSAP
- Date:
- 27 Dec 2024 08:31:03
- Publisher:
- The GAVO DC team
- Description:
- The zCOSMOS redshift survey used 600h on the VIMOS spectrograph spread over five observing seasons (2005-2009) to obtain spectra of about 20,000 galaxies selected to have Iab < 22.5 across the full 1.7 deg2 of the COSMOS field. This part, "zCOSMOS-bright", was designed to yield a high and fairly uniform sampling rate (about 70%), with a high success rate in measuring redshifts (approaching 100% at 0.5 < z < 0.8), and with sufficient velocity accuracy (about 100 km/s) to efficiently map the environments of galaxies down to the scale of galaxy groups out to redshifts z ~ 1.
