1 - 21 of 21
Number of results to display per page
Search Results
- ID:
- ivo://org.gavo.dc/bgds/q/sia
- Title:
- Bochum Galactic Disk Survey (BGDS) images
- Short Name:
- bgds sia
- Date:
- 09 Feb 2023 14:31:11
- Publisher:
- The GAVO DC team
- Description:
- The Bochum Galactic Disk Survey is an ongoing project to monitor the stellar content of the Galactic disk in a 6 degree wide stripe centered on the Galactic plane. The data has been recorded since mid-2010 in Sloan r and i simultaneously with the RoBoTT Telecsope at the Universitaetssternwarte Bochum near Cerro Armazones in the Chilean Atacama desert. It contains measurements of about 2x10^7 stars over more than seven years. Additionally, intermittent measurements in Johnson UVB and Sloan z have been recorded as well.
- ID:
- ivo://org.gavo.dc/boydende/q/data
- Title:
- Boyden Station ADH Plates in Germany
- Short Name:
- boydende.data
- Date:
- 21 Mar 2023 00:03:28
- Publisher:
- The GAVO DC team
- Description:
- The Armagh-Dunsink-Harvard Becker-Schmidt Telescope was deployed at Boyden Station, Maselspoort South Africa between 1965 and 1970. During that time, astronomers from Bamberg, Heidelberg, Hamburg and Münster took astronomical images there, with a focus on old star clusters, the Magellanic clouds, and the southern milky way. This service provides scans of the plates obtained.
- 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/fornax/q/c
- Title:
- Deep Mosaic of the Fornax cluster core
- Short Name:
- fornax cutout
- Date:
- 27 Feb 2023 14:52:21
- Publisher:
- The GAVO DC team
- Description:
- This is a deep optical mosaic of the Fornax cluster’s core, covering 1.6 square degrees. The data were acquired with ESO/MPG 2.2m/WFI, using a transparent filter that nearly equals the no-filter throughput and thus provides a high signal-to-noise ratio. Based on an approximate conversion to V-band magnitudes, the unbinned and binned mosaics (0.24 and 0.71 arcsec/pixel) reach a median depth of 26.6 and 27.8 mag/sq.arcsec, respectively.
- ID:
- ivo://org.gavo.dc/dfbs/q/i
- Title:
- Digitized First Byurakan Survey (DFBS) Plate Scans
- Short Name:
- DFBS plates
- Date:
- 05 Jan 2023 13:10:51
- Publisher:
- The GAVO DC team
- Description:
- First Byurakan survey plate scan service
- ID:
- ivo://org.gavo.dc/__system__/siap2/sitewide
- Title:
- GAVO Data Center SIAP Version 2 Service
- Short Name:
- GAVO DC SIA2
- Date:
- 07 Feb 2024 00:41:32
- Publisher:
- The GAVO DC team
- Description:
- The GAVO Data Center'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.
- ID:
- ivo://org.gavo.dc/lswscans/res/positions/siap
- Title:
- HDAP -- Heidelberg Digitized Astronomical Plates
- Short Name:
- hdap_siap
- Date:
- 31 Oct 2023 19:15:05
- Publisher:
- The GAVO DC team
- Description:
- Scans of plates kept at Landessternwarte Heidelberg-Königstuhl. They were obtained at location, at the German-Spanish Astronomical Center (Calar Alto Observatory), Spain, and at La Silla, Chile. The plates cover a time span between 1880 and 1999. Specifically, HDAP is essentially complete for the plates taken with the Bruce telescope, the Walz reflector, and Wolf's Doppelastrograph at both the original location in Heidelberg and its later home on Königstuhl.
- ID:
- ivo://org.gavo.dc/hppunion/q/im
- Title:
- Historical Photographic Plate Image Archive
- Short Name:
- hpp_web
- Date:
- 23 Mar 2022 13:13:04
- Publisher:
- The GAVO DC team
- Description:
- GAVO's historical photographic plate archive (GHHPA) is a collection of various digitized historical photographic plates. It currently exposes: * the scans of plates of selected Kapteyn special fields obtained at Potsdam * the Palomar-Leiden Trojan surveys, 1960-1977, * a collection of plates obtained at Boyden Station, South Africa, kept at various German observatories. Other plate collections kept by GAVO include the Heidelberg Digitized Astronomical Plates HDAP, ivo://org.gavo.dc/lswscans/res/positions/siap, and the APPLAUSE database from Potsdam.
- ID:
- ivo://org.gavo.dc/lensunion/q/im
- Title:
- Lens Image Archive
- Short Name:
- lenses_web
- Date:
- 23 Mar 2022 13:13:10
- Publisher:
- The GAVO DC team
- Description:
- A collection of images of lensed quasars from various sources. Included are images from Maidanak Observatory (ivo://org.gavo.dc/maidanak/res/rawframes/siap), Apache Point Observatory, from the MiNDSTEp project (ivo://org.gavo.dc/danish/red/q), and from the Liverpool Robotic Telescope (ivo://org.gavo.dc/liverpool/res/rawframes/q).
- ID:
- ivo://org.gavo.dc/liverpool/res/rawframes/rawframes
- Title:
- Liverpool Quasar Lens Monitoring
- Short Name:
- liverpool.rawfra
- Date:
- 20 Apr 2023 00:19:47
- Publisher:
- The GAVO DC team
- Description:
- This collection includes optical monitorings of gravitationally lensed quasars. The frames can be used to make light curves of quasar images and field objects. From quasar light curves, one may measure time delays and flux ratios, analyse variability and chromaticity, etc. These direct analyses/measurements are basic tools for different astrophysical studies, e.g., expansion rate of the Universe, mechanism of intrinsic variability in quasars, accretion disk structure, supermassive black holes, dark halos of galaxies (dust, collapsed dark matter, smoothly distributed dark matter,...)
- ID:
- ivo://org.gavo.dc/maidanak/res/rawframes/reduced
- Title:
- Maidanak Observatory Lens Images
- Short Name:
- maidanak.reduced
- Date:
- 23 Mar 2022 13:13:10
- Publisher:
- The GAVO DC team
- Description:
- Reduced frames of lensed quasar observations from Maidanak Observatory. See the referenceURL for details on the reduction procedure and calibration data.
- ID:
- ivo://org.gavo.dc/maidanak/res/rawframes/rawframes
- Title:
- Maidanak Observatory Lens Images
- Date:
- 22 Jan 2021 08:24:03
- Publisher:
- The GAVO DC team
- Description:
- Observations of (mainly) lensed quasars from Maidanak Observatory, Uzbekhistan
- ID:
- ivo://org.gavo.dc/danish/red/data
- Title:
- MiNDSTEP Danish Observatory Lens Images
- Short Name:
- danish.data
- Date:
- 23 Mar 2022 13:13:04
- Publisher:
- The GAVO DC team
- Description:
- TBD
- ID:
- ivo://org.gavo.dc/flare_survey/q/data
- Title:
- Plates From Münster Flare Star Survey 1986-1991
- Short Name:
- flare_survey.dat
- Date:
- 23 Mar 2022 13:13:07
- Publisher:
- The GAVO DC team
- Description:
- From 1986 through 1991, the Astronomical Institute of Münster University performed a search for flare stars in several southern associations and open stellar clusters using the GPO telescope (d=40 cm, WFPDB identifier ESO040); the fields suveyed include Coalsack, M42, B228 Lup, the Chameleon T1 association, omicron Vel cluster, R CrA association, the Pipe nebula (B59 Oph), and the Sco-Oph association. This was done primarily through multiple exposures. The files published here are plate scans done in 2017. The obscore collection name for these files is Muenster Flare Survey.
- ID:
- ivo://org.gavo.dc/kapteyn/q/plates
- Title:
- Potsdam Kapteyn Series Plates
- Short Name:
- kapteyn.plates
- Date:
- 01 Dec 2022 00:50:28
- Publisher:
- The GAVO DC team
- Description:
- In the context of Kapteyn's plan to obtain a photometric standard, in Potsdam more than 400 photographic plates of several Selected Areas, Special Areas, and Kapteyn-Pritchard areas were obtained between 1910 and 1933, both as direct images and with an object prism. This service provides FITS images of the science area of the plates as well as images of the entire plates, including previous markings.
- ID:
- ivo://org.gavo.dc/rosat/q/im
- Title:
- ROSAT Survey and Pointed Images
- Short Name:
- ROSAT images
- Date:
- 20 Apr 2023 00:06:45
- Publisher:
- The GAVO DC team
- Description:
- Images taken by the ROSAT x-ray observatory. This comprises both pointed observations and images taken within the all-sky survey.
- ID:
- ivo://org.gavo.dc/sasmirala/q/im
- Title:
- Sasmirala Subarcsecond mid-infrared atlas of local AGN
- Short Name:
- sasmirala atlas
- Date:
- 23 Mar 2022 13:13:11
- Publisher:
- The GAVO DC team
- Description:
- These FITS images were generated with the IDL package MIRphot [Asmus2014]_ by extraction (and combination) of the sub-images from the chopped/nodded total images from COMICS, Michelle, T-ReCS and VISIR (see [Asmus2014]_ for details). The FITS images contain the central ~4 arcsec of each source centered on the (putative) nuclear position with North being up and East to the left. The WCS registration has been performed after extraction by using coordinates of the nucleus from other wavelengths (mostly 2MASS and NED). The uncertainty of these reference position is usually less than 1 arcsec. In addition, the imprecision of the assignment itself is ~1px ~ 0.1". The FITS images are flux calibrated (unit is mJy) using the Gaussian 2D fits to the corresponding STD observation (where available, otherwise using the median conversion factor for the used instrument/filter settings). Therefore, correction factors have to be applied in case other flux measurement methods are applied to the images. The flux values given in the FITS headers should be regarded as approximate values. In particular for the instruments, VISIR and COMICS, they are not necessarily exactly equal to the values provided in the photometry results table, because many flux measurements were performed during the process of combining individual subimages (all in MIRphot), instead of in the final combined image, provided here. The used total images are available upon request. Note, however, that these are just the products of the observatory-delivered pipelines with default parameters. .. [Asmus2014] Asmus D., Hoenig S.F., Gandhi P., Smette A., Duschl W.: The subarcsecond mid-infrared view of local active galactic nuclei: I. The N- and Q-band imaging atlas, `2014MNRAS.439.1648A <http://ads.ari.uni-heidelberg.de/abs/2014MNRAS.439.1648A>`_
- ID:
- ivo://org.gavo.dc/plts/q/data
- Title:
- Scans of the Palomar-Leiden Trojan Survey Plates
- Short Name:
- plts.data
- Date:
- 23 Mar 2022 13:13:18
- Publisher:
- The GAVO DC team
- Description:
- This service publishes plate scans of the Palomar-Leiden Troian surveys conducted between 1960 and 1977. The surveys led to the discovery of more than 2,000 asteroids (1,800 with orbital information), with another 2,400 asteroids, including 19 Trojans, found after further analysis of the plates. Note that because of the large size of the plates, in this service each original plate is contained in two parts, marked with "_1" and "_2", respectively. The central parts of the two parts overlap.
- ID:
- ivo://org.gavo.dc/smakced/q/im
- Title:
- SMAKCED H-band images of Early-Type Virgo Dwarf Galaxies
- Short Name:
- smakced H images
- Date:
- 23 Mar 2022 13:13:18
- Publisher:
- The GAVO DC team
- Description:
- The Stellar content, MAss and Kinematics of Cluster Early-type Dwarf galaxies (SMAKCED_) project is a survey of 121 Virgo cluster early type galaxies. This service publishes deep near-infrared (H band) images obtained by SMAKCED together with `resulting decompositions`_ and other properties of the galaxies in the sample. .. _SMAKCED: http://smakced.net .. _resulting decompositions: http://smakced.net/data.html
- ID:
- ivo://org.gavo.dc/emi/q/s
- Title:
- VLBI images of Lockman Hole radio sources
- Short Name:
- VLBI-Lockman
- Date:
- 16 Jan 2024 16:41:20
- Publisher:
- The GAVO DC team
- Description:
- These are 1.4GHz Very Long Baseline Interferometry images of 532 radio sources with a flux density exceeding 100uJy as determined by Ibar et al. (2009, MNRAS, 397, 281), obtained between 2010-06-03 and 2010-09-03. For all fields, we give frames processed using natural weighting to preserve maximal sensitivity. For the 65 detected sources, we additionally give frames processed using uniform weighting to suppress sidelobes (see Middelberg et al. 2013, A&A 551, 97 for details) in flux density measurements. Some sources have larger images to cover a larger area because the initial coordinates were not sufficiently accurate.