- ID:
- ivo://org.gavo.dc/arigfh/q/cone
- Title:
- ARIGFH identified objects
- Short Name:
- arigfh scs
- Date:
- 06 Feb 2024 09:10:44
- Publisher:
- The GAVO DC team
- Description:
- ARI's "Geschichte des Fixsternhimmels" is an attempt to collect all astrometrically useful observations from before ca. 1970 in a way comparable to what has been done to construct the FK* series of fundamental catalogs. About 7e6 published positions are included. In GAVO's DC, we provide tables of identified and non-identified stars together with the master catalog that objects were identified against.
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- ID:
- ivo://org.gavo.dc/arihip/q/cone
- Title:
- ARIHIP astrometric catalogue
- Short Name:
- arihip cone
- Date:
- 23 Mar 2022 13:13:11
- Publisher:
- The GAVO DC team
- Description:
- The catalogue ARIHIP has been constructed by selecting the 'best data' for a given star from combinations of HIPPARCOS data with Boss' GC and/or the Tycho-2 catalogue as well as the FK6. It provides 'best data' for 90 842 stars with a typical mean error of 0.89 mas/year (about a factor of 1.3 better than Hipparcos for this sample of stars).
- ID:
- ivo://org.gavo.dc/amlensing/q2/q
- Title:
- Astrometric Microlensing Events Predicted from Gaia DR2
- Short Name:
- am lensing 2
- Date:
- 23 Mar 2022 13:13:04
- Publisher:
- The GAVO DC team
- Description:
- From the Gaia DR2 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (µ_tot >150mas/yr) passing a background source in the next decades. Using Gaia DR2 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 3914 microlensing events by 2875 different lenses between 2010 and 2065 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. 513 of those are expected to happen between 2014.5 - 2026.5 and might be measured by Gaia. For 127 events we also expect a magnification between 1 mmag and 3 mag.
- ID:
- ivo://org.gavo.dc/amlensing/q3/q
- Title:
- Astrometric Microlensing Events Predicted from Gaia eDR3
- Short Name:
- am lensing 2
- Date:
- 23 Mar 2022 13:13:11
- Publisher:
- The GAVO DC team
- Description:
- From the Gaia eDR3 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (μ > 100 mas/yr) passing a background source in the next decades. Using Gaia DR3 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 4842 microlensing events by 3791 different lenses between 2010 and 2066 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. The past events might be interested when analyzing the individual Gaia measurements). 685 of those are expected to happen within the next decade (2021-2031). For 140 events we also expect a magnification between 1 mmag and 0.6 mag.
- ID:
- ivo://bsdc.icranet.org/onebigb/q/cone
- Title:
- 1BIGB catalog
- Short Name:
- 1BIGB cone
- Date:
- 23 May 2018 15:55:04
- Publisher:
- BSDC
- Description:
- This catalog presents the 1-100 GeV spectral energy distribution (SED) for a population of 148 high-synchrotron-peaked blazars (HSPs) recently detected with Fermi-LAT as part of the First Brazil-ICRANet Gamma-ray Blazar catalogue (1BIGB). A series of two works describe details on the broadband analysis https://arxiv.org/abs/1609.08501 (paper 1), and the calculation of the gamma-ray SEDs https://arxiv.org/abs/1804.08801 (paper 2). Most of the 1BIGB sources do not appear in previous Fermi-LAT catalogues and their gamma-ray spectral properties are presented here for the first time, representing a significant new extension of the gamma-ray blazar population. Since the 1BIGB sample was originally selected from an excess signal in the 0.3-500 GeV band, the sources stand out as promising TeV blazar candidates, potentially in reach of the forthcoming very-high-energy (VHE) gamma-ray observatory, CTA. The flux estimates presented here are derived considering PASS8 data, integrating over more than 9 years of Fermi-LAT observations. The full broadband fit between 0.3-500 GeV presented in paper 1 for all sources was reevaluated in paper 2, updating the power-law parameters with currently available Fermi-LAT dataset. The importance of these sources in the context of VHE population studies with both current instruments and the future CTA is evaluated in paper 2. To do so, a subsample of 1BIGB sources was selected and had their gamma-ray SEDs extrapolated to the highest energies, properly accounting for absorption due to the extragalactic background light. Those extrapolations were compared to the published CTA sensitivity curves and their detectability by CTA was estimated. Two notable sources from our sample, namely 1BIGB J224910.6-130002 and 1BIGB J194356.2+211821, are discussed in greater detail in paper 2. All gamma-ray SEDs, which are shown here for the first time, are made publicly available via the Brazilian Science Data Center (BSDC) service, maintained at CBPF, in Rio de Janeiro.
- ID:
- ivo://org.gavo.dc/onebigb/q/ssap
- Title:
- 1BIGB: First Brazil-ICRANet Gamma-Ray Blazar Catalogue
- Short Name:
- 1BIGB SSAP
- Date:
- 23 Mar 2022 13:13:03
- Publisher:
- The GAVO DC team
- Description:
- This catalog presents the 1-100 GeV spectral energy distribution (SED) for a population of 148 high-synchrotron-peaked blazars (HSPs) recently detected with Fermi-LAT as part of the First Brazil-ICRANet Gamma-ray Blazar catalogue (1BIGB). A series of two works describe details on the broadband analysis: :bibcode:`2017A&A...598A.134A`, and the calculation of the gamma-ray SEDs :bibcode:`2018MNRAS.480.2165A`. The 1BIGB sample was originally selected from an excess signal in the 0.3-500 GeV band The flux estimates presented here are derived considering PASS8 data, integrating over more than 9 years of Fermi-LAT observations. The full broadband fit between 0.3-500 GeV presented in paper 1 for all sources was reevaluated in paper 2, updating the power-law parameters with currently
- ID:
- ivo://org.gavo.dc/amlensing/q/q
- Title:
- Candidates for astrometric microlensing
- Short Name:
- am lensing cands
- Date:
- 23 Mar 2022 13:13:11
- Publisher:
- The GAVO DC team
- Description:
- A catalogue of candidate stars for observing astrometric microlensing using Gaia.
- ID:
- ivo://org.gavo.dc/cars/q/cutout
- Title:
- CARS image cutouts
- Short Name:
- CARS_cutout
- Date:
- 23 Mar 2022 13:13:18
- Publisher:
- The GAVO DC team
- Description:
- Images and data from from the CFHTLS archive research survey, a multi-band dataset spanning 37 square degrees of sky in high galactic latitudes.
- ID:
- ivo://org.gavo.dc/cars/q/cat
- Title:
- CARS source catalogue query
- Short Name:
- CARS_sources
- Date:
- 23 Mar 2022 13:13:18
- Publisher:
- The GAVO DC team
- Description:
- Images and data from from the CFHTLS archive research survey, a multi-band dataset spanning 37 square degrees of sky in high galactic latitudes.
10. Data Central SCS
- ID:
- ivo://purx/datacentral-scs
- Title:
- Data Central SCS
- Short Name:
- DCSCS
- Date:
- 15 Jun 2021 11:47:41
- Publisher:
- Data Central
- Description:
- Data Central Simple Cone Search. Access Data Central and other catalogues.
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