This service provides a cone search on the table of FRB detection,
and returns links to the FRB properties as well as one to the PSRFITS
files with the data.
This service provies a cone search on the table containing metadata
from the data obtained throughout all observations performed for the
survey. If an FRB was detected, a link to the FRB properties as well
as one to the PSRFITS data are provided. If no FRB was deteced in the
data, a link is provided to a service that lists all information
needed to request the raw data to be staged from tape to disk, as well
as documentation on the procedure to perform this request. Please note
that requests for raw data are handled on base of best effort.
The archive of AGN spectral observations is obtained on AZT-8
telescope at the Fesenkov Astrophysical Institute (FAI), Almaty,
Kazakhstan. It represents the result of observations for abot 25 years
- from 1970 to 1995. All observations were carried out at AZT-8 (D =
700 mm, F[main] = 2800 mm, F[Cassegrain] = 11000 mm) with a high-power
spectrograph. In 1967-68, on the basis of the image intensifier
(https://doi.org/10.1080/1055679031000084795a) developed and assembled
the spectrograph of the original design in the workshops of the FAI.
To use the spectra, please, download raw .fit file of required object,
date and exposure. The open 'Calibration frames' in Related links and
then use them to calibrate object spectra frames. For more information
about calibration process please visit
https://github.com/ill-i/Spectra-Reduction.
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.
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).
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.
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.
Extracted sources from the Bochum Galactic Disk Survey. We provide
mean photometry in U, B, V, z, r, and i bands. Note that sources in
different bands are not matched. Also, sources sitting in the regions
imaged in multiple fields have not been matched even within one band.
In i and r, BGDS light curves are available. See related services for
details.
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.
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