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.
This service queries the catalog of radio sources from the LOFAR
Two-metre Sky Survey First Data Release (LoTSS-DR1) that have been
cross-matched with an optical or infrared counterpart. This data
release contains images and catalogs that characterise the
low-frequency radio emission in the region of the HETDEX Spring Field
(right ascension 10h45m00s to15h30m00s and declination 45◦00′00′′ to
57◦00′00′′). A total of 325,694 radio sources are detected in a region
covering 424 square degrees. The maps have a median sensitivity of 71
uJy/beam and a resolution of 6 arcsec. Optical counterparts for 71% of
the radio sources have been identified and where possible photometric
redshifts for these sources have been derived.
In this data release from the ongoing LOw-Frequency ARray (LOFAR)
Two-metre Sky Survey (LoTSS) we present 120-168 MHz images covering
27% of the northern sky. Our coverage is split into two regions
centred at approximately 12h45m +44°30′ and 1h00m +28°00′ and spanning
4178 and 1457 square degrees respectively. The images were derived
from 3,451 hrs (7.6 PB) of LOFAR High Band Antenna data which were
corrected for the direction-independent instrumental properties as
well as direction-dependent ionospheric distortions during extensive,
but fully automated, data processing. A catalogue of 4,395,448 radio
sources is derived from our total intensity (Stokes I) maps, where the
majority of these have never been detected at radio wavelengths
before. At 6′′ resolution, our full bandwidth Stokes I continuum maps
with a central frequency of 144 MHz have: a median rms sensitivity of
83 μ Jy/beam; a flux density scale accuracy of approximately 10%; an
astrometric accuracy of 0.2′′; and we estimate the point-source
completeness to be 90% at a peak brightness of 0.8 mJy/beam. By
creating three 16 MHz bandwidth images across the band we are able to
measure the in-band spectral index of many sources, albeit the error
on the derived spectral index is > ±0.2 which is a consequence of our
flux-density scale accuracy and small fractional bandwidth. Our
circular polarisation (Stokes V) 20′′ resolution 120-168 MHz continuum
images have a median rms sensitivity of 95 μ Jy/beam, and we estimate
a Stokes I to Stokes V leakage of 0.056%. Our linear polarisation
(Stokes Q and Stokes U) image cubes consist of 480 97.6 kHz wide
planes and have a median rms sensitivity per plane of 10.8mJy/beam at
4′ and 2.2mJy/beam at 20′′; we estimate the Stokes I to Stokes Q/U
leakage to be approximately 0.2%. Here we characterise and publicly
release our Stokes I, Q, U and V images in addition to the calibrated
uv-data to facilitate the thorough scientific exploitation of this
unique dataset. This service queries the Stokes I continuum mosaic
gaussian component catalogue.
This service queries the catalog of images from the LOFAR Two-metre
Sky Survey First Data Release (LoTSS-DR1). This data release contains
images and catalogs that characterise the low-frequency radio emission
in the region of the HETDEX Spring Field (right ascension 10h45m00s
to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A total of
325,694 radio sources are detected in a region covering 424 square
degrees. The maps have a median sensitivity of 71 uJy/beam and a
resolution of 6 arcsec. Optical counterparts for 71% of the radio
sources have been identified and where possible photometric redshifts
for these sources have been derived.
This service provides cutouts from the images of the LOFAR Two-metre
Sky Survey First Data Release (LoTSS-DR1). This data release contains
images and catalogs that characterise the low-frequency radio emission
in the region of the HETDEX Spring Field (right ascension 10h45m00s
to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A total of
325,694 radio sources are detected in a region covering 424 square
degrees. The maps have a median sensitivity of 71 uJy/beam and a
resolution of 6 arcsec. Optical counterparts for 71% of the radio
sources have been identified and where possible photometric redshifts
for these sources have been derived.
In this data release from the ongoing LOw-Frequency ARray (LOFAR)
Two-metre Sky Survey (LoTSS) we present 120-168 MHz images covering
27% of the northern sky. Our coverage is split into two regions
centred at approximately 12h45m +44°30′ and 1h00m +28°00′ and spanning
4178 and 1457 square degrees respectively. The images were derived
from 3,451 hrs (7.6 PB) of LOFAR High Band Antenna data which were
corrected for the direction-independent instrumental properties as
well as direction-dependent ionospheric distortions during extensive,
but fully automated, data processing. A catalogue of 4,395,448 radio
sources is derived from our total intensity (Stokes I) maps, where the
majority of these have never been detected at radio wavelengths
before. At 6′′ resolution, our full bandwidth Stokes I continuum maps
with a central frequency of 144 MHz have: a median rms sensitivity of
83 μ Jy/beam; a flux density scale accuracy of approximately 10%; an
astrometric accuracy of 0.2′′; and we estimate the point-source
completeness to be 90% at a peak brightness of 0.8 mJy/beam. By
creating three 16 MHz bandwidth images across the band we are able to
measure the in-band spectral index of many sources, albeit the error
on the derived spectral index is > ±0.2 which is a consequence of our
flux-density scale accuracy and small fractional bandwidth. Our
circular polarisation (Stokes V) 20′′ resolution 120-168 MHz continuum
images have a median rms sensitivity of 95 μ Jy/beam, and we estimate
a Stokes I to Stokes V leakage of 0.056%. Our linear polarisation
(Stokes Q and Stokes U) image cubes consist of 480 97.6 kHz wide
planes and have a median rms sensitivity per plane of 10.8mJy/beam at
4′ and 2.2mJy/beam at 20′′; we estimate the Stokes I to Stokes Q/U
leakage to be approximately 0.2%. Here we characterise and publicly
release our Stokes I, Q, U and V images in addition to the calibrated
uv-data to facilitate the thorough scientific exploitation of this
unique dataset. This service queries the Stokes I continuum mosaic
images.
This service queries the catalog of radio sources from the LOFAR
Two-metre Sky Survey First Data Release (LoTSS-DR1). This data release
contains images and catalogs that characterise the low-frequency radio
emission in the region of the HETDEX Spring Field (right ascension
10h45m00s to15h30m00s and declination 45◦00′00′′ to 57◦00′00′′). A
total of 325,694 radio sources are detected in a region covering 424
square degrees. The maps have a median sensitivity of 71 uJy/beam and
a resolution of 6 arcsec. Optical counterparts for 71% of the radio
sources have been identified and where possible photometric redshifts
for these sources have been derived.
In this data release from the ongoing LOw-Frequency ARray (LOFAR)
Two-metre Sky Survey (LoTSS) we present 120-168 MHz images covering
27% of the northern sky. Our coverage is split into two regions
centred at approximately 12h45m +44°30′ and 1h00m +28°00′ and spanning
4178 and 1457 square degrees respectively. The images were derived
from 3,451 hrs (7.6 PB) of LOFAR High Band Antenna data which were
corrected for the direction-independent instrumental properties as
well as direction-dependent ionospheric distortions during extensive,
but fully automated, data processing. A catalogue of 4,395,448 radio
sources is derived from our total intensity (Stokes I) maps, where the
majority of these have never been detected at radio wavelengths
before. At 6′′ resolution, our full bandwidth Stokes I continuum maps
with a central frequency of 144 MHz have: a median rms sensitivity of
83 μ Jy/beam; a flux density scale accuracy of approximately 10%; an
astrometric accuracy of 0.2′′; and we estimate the point-source
completeness to be 90% at a peak brightness of 0.8 mJy/beam. By
creating three 16 MHz bandwidth images across the band we are able to
measure the in-band spectral index of many sources, albeit the error
on the derived spectral index is > ±0.2 which is a consequence of our
flux-density scale accuracy and small fractional bandwidth. Our
circular polarisation (Stokes V) 20′′ resolution 120-168 MHz continuum
images have a median rms sensitivity of 95 μ Jy/beam, and we estimate
a Stokes I to Stokes V leakage of 0.056%. Our linear polarisation
(Stokes Q and Stokes U) image cubes consist of 480 97.6 kHz wide
planes and have a median rms sensitivity per plane of 10.8mJy/beam at
4′ and 2.2mJy/beam at 20′′; we estimate the Stokes I to Stokes Q/U
leakage to be approximately 0.2%. Here we characterise and publicly
release our Stokes I, Q, U and V images in addition to the calibrated
uv-data to facilitate the thorough scientific exploitation of this
unique dataset. This service queries the Stokes I continuum mosaic
source catalogue.
This service queries the catalog of images from the LOFAR HBA Tier-1
preliminary data release (LoTSS-PDR). This data release contains
images and catalogs that characterise the low-frequency radio emission
in the region of the HETDEX Spring Field. In excess of 40,000 sources
are detected in the images that cover an area of over 350 square
degrees, have a resolution of 25 arcsec, and typical noise levels of
less than 0.5 mJy/beam.
This service provides cutouts from the images of the LOFAR HBA Tier-1
preliminary data release (LoTSS-PDR). This data release contains
images and catalogs that characterise the low-frequency radio emission
in the region of the HETDEX Spring Field. In excess of 40,000 sources
are detected in the images that cover an area of over 350 square
degrees, have a resolution of 25 arcsec, and typical noise levels of
less than 0.5 mJy/beam.
This service queries the unified source catalogue of radio sources
from the Multifrequency Snapshot Sky Survey (MSSS) Verification Field.
This survey is the first major observing program to be carried out
with LOFAR during its ongoing commissioning phase. This service
queries the unified source catalogue database for the MSSS survey. The
Verification Field is a region of 100 square degrees centered at
(15h,69◦).
The The VO @ ASTRON's sitewide SIAP version 2 service
publishes all the images published through the site. For more advanced
queries including uploads, all this data is also available through
ObsTAP.
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.
The MAGIC project observes the VHE sky (GeV~TeV) through Cherenkov
radiation events. The project is operating since 2004 and with the
support from the Spain-VO team they provide data access through a
VO-SSAP and web services. Our goal here is to provide the same kind of
service with the difference that the data is transformed and
homogeneized in its flux units, to values in 'erg/(s.cm2)', and photon
energy values in equivalent 'Hz' frequency values.
The catalogue WDSLOAN10 has been constructed by spectroscopically
selecting white dwarfs and subdwarfs in the Sloan Digital Sky Survey
Data Release 10. It offers Teff, log(g) and mass for hydrogen
atmosphere white dwarf stars (DAs) and helium atmosphere white dwarf
stars (DBs), and estimatives of calcium/helium abundances for the
white dwarf stars with metallic lines (DZs) and carbon/helium for
carbon dominated spectra DQs.
The catalog 1WHSP is the result of a multi-frequency selection for
blazars like SED, further filtered using IR-radio and IR-X-ray
flux-ratios. The sample assembled contains almost 992 sources of HSP
blazars, of which 425 are previously known blazars, 151 new
identifications and 416 blazar candidates. On the very high energy
trend, 299 are confirmed GeV gamma-ray photons emitters and 36 have
already been detected in the TeV band.
The resource contains the recommendations and requirements for ALMA
FITS products of the Inter-ARC ALMA Science Archive Working Group
(ASAWG) with the view to including a metadataset that is complete and
easily accessible by the ChiVO Data Provider (CDP).
The resource contains the recommendations and requirements for ALMA
FITS products of the Inter-ARC ALMA Science Archive Working Group
(ASAWG) with the view to including a metadataset that is complete and
easily accessible by the ChiVO Data Provider (CDP).
Spectra from surveys hosted by Data Central. Most spectra were taken with the multi-object spectroscopy facilities 2dF (Anglo-Australian Telescope) and 6dF (UK Schmidt Telescope).
The database of Active Galactic Nuclea (AGN) photometrical
observations obtained on defferent telescopes at Fesenkov
Astrophysical Institute, Almaty, Kazakhstan since 2016. Observations
were carried out in the optical range.
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.
The database of Gamma Ray Burst (GRB) photometrical observations
obtained on defferent telescopes at Fesenkov Astrophysical Institute,
Almaty, Kazakhstan. Observations were carried out in the optical
range.
GAVO at Leibniz-Institute for Astrophysics Potsdam
Description:
This service gives access to the 4th data release of RAVE (RAdial
Velocity Experiment). It contains radial velocities of stars, stellar
atmospheric parameters, some abundances and distances.
2007-2017 ANTARES search for cosmic neutrino point sources
Short Name:
ANTARES2017
Date:
09 Feb 2023 20:42:02
Publisher:
KM3NeT
Description:
The ANTARES neutrino telescope aims for the identification of
neutrinos from cosmic accelerators. The good visibility towards the
Southern sky for neutrino energies below 100 TeV and the good angular
resolution for reconstructed events make the telescope excellent to
test for the presence of point-like sources, especially of Galactic
origin. The data set corresponds to the track sample (muon neutrino
candidates) of a study meant to search for a point sources with data
collected from January 2007 to December 2017 by the ANTARES neutrino
telescope.
High-resolution optical spectra of HD165052 (Ferrero+, 2013) at NOVA
Short Name:
NOVA HD 165052
Date:
14 Aug 2014 17:03:24
Publisher:
Nova
Description:
This is a set of high-resolution high-S/N optical spectra of the
massive binary star HD 165 052 (O7Vz + O7.5Vz) taken between 2008
April and 2011 May with echelle spectrographs at CASLEO (mainly), LCO
and ESO. Each one covers the spectral range 3700-6000 A with a
resolution varying between ~13000 and ~45000 @ 5000A according to the
instrument. Originally, the spectra were secured for radial velocity
measurements. More details about observations, instrument
configurations and reduction process can be found in documentation
section.
This collection is comprised of spectra from many different
researchers, observatories and instrumental configurations. Most of
them were used in publications (bibcode indicated at column "Ref.").
Band merged JHKs catalogue for first epoch data from CASU v1.3. VVV
DR1, corrected for header errors (Mike Irwin, Private Communication).
Release of the Milky Way bulge and southern plane from the
near-infrared ESO public survey VISTA variables in the Vía Láctea.
The release consists of event lists and instrument response functions
for observations of various well-known gamma-ray sources (the Crab
nebula, PKS 2155-304, MSH 15-52, RX J1713.7-3946) as well as
observations of empty fields for background modeling.
SSA service for RCSED spectrophotometric catalog of nearby galaxies
Short Name:
CZKM_SSAP
Date:
03 Apr 2022 16:03:40
Publisher:
Paris Astronomical Data Centre
Description:
miror service of Observed spectra and their fitted models for galaxies
from RCSED catalog (derived from cross-match between SDSS, GALEX, and
UKIDSS catalogs)
Smithsonian Astrophysical Observatory Telescope Data Center
Description:
This catalog contains derived information and access to spectra for a
catalog of objects in the field of M31, drawn from the study of star
clusters, HII regions, PNe and individual stars in M31 done with
Hectospec on the MMT by Nelson Caldwell and a host of others.
AAVSO Photometric All-Sky Survey (APASS), underway since 2010,
covers the entire sky from 7.5 < V < 16.5 magnitude, and in the BVugrizY
bandpasses. A northern and a southern site are used, each with twin ASA
20cm astrographs and Apogee Aspen CG16m cameras, covering 2.9x2.9 square
degrees with 2.6arcsec pixels. Landolt and SDSS standards are used for
all-sky solutions, with typical 0.02mag calibration errors on the bright
end.
Data Release 10 is a complete reprocessing of all 500K images taken with
the system, including hundreds of nights not part of DR9. Sextractor is
used for star finding and centroiding; DAOPHOT is used for aperture
photometry; the astrometry.net plate-solving library is used for basic
astrometry, supplanted with more precise WCS that utilizes knowledge of the
optical train distortions. With these changes, DR10 includes many more
stars than prior releases.
More information is available at http://www.aavso.org/apass.
A Catalog of Galaxies in the Direction of the Perseus Cluster
Short Name:
pcc cone
Date:
23 Mar 2022 13:13:05
Publisher:
The GAVO DC team
Description:
This is a catalog of 5437 morphologically classified sources in the
direction of the Perseus galaxy cluster core, among them 496
early-type low-mass galaxy candidates. The catalog is primarily based
on V-band imaging data acquired with the William Herschel Telescope.
Additionally, we used archival Subaru multiband imaging data in order
to measure aperture colors and to perform a morphological
classification. The catalog reaches its 50 per cent completeness limit
at an absolute V-band luminosity of -12 mag and a V-band surface
brightness of 26 mag arcsec^-2 .
In addition to the published table, this service also contains cutout
images of the objects investigated.
A all-sky compilation of galactic stellar sources observed for OH
maser emission in the transitions at 1612, 1665, and 1667 MHz. The
database contains OH maser observations selected from the literature .
These observations belong to more than 6000 different objects. The
database consists of three tables: The main table ("masers"),
interferometric followup observations ("maps") and monitoring programs
("monitor").
A Database of Circumstellar OH Masers: Interferometric Followups
Short Name:
engels oh maps
Date:
23 Mar 2022 13:13:07
Publisher:
The GAVO DC team
Description:
A all-sky compilation of galactic stellar sources observed for OH
maser emission in the transitions at 1612, 1665, and 1667 MHz. The
database contains OH maser observations selected from the literature .
These observations belong to more than 6000 different objects. The
database consists of three tables: The main table ("masers"),
interferometric followup observations ("maps") and monitoring programs
("monitor").
A Database of Circumstellar OH Masers: Monitoring Programs
Short Name:
engels oh mon
Date:
23 Mar 2022 13:13:07
Publisher:
The GAVO DC team
Description:
A all-sky compilation of galactic stellar sources observed for OH
maser emission in the transitions at 1612, 1665, and 1667 MHz. The
database contains OH maser observations selected from the literature .
These observations belong to more than 6000 different objects. The
database consists of three tables: The main table ("masers"),
interferometric followup observations ("maps") and monitoring programs
("monitor").