Do nuclear star clusters and supermassive black holes. The most common names are compiled allowing users to recover quickly any galaxy. Autres noms, database for physics of galaxies, lyonmeudon extragalactic database, leda database, hyperlinked extragalactic databases and archives. Studies have suggested that there is a strong correlation between the masses of nuclear star clusters nscs and their host galaxies, a correlation which is said to be an extension of the wellknown correlations between supermassive black holes smbhs and their host galaxies. Skymap pro product information skymap astronomy software. The cmdstrgb index page of the database lists each galaxys pgcleda number principal galaxy cataloglyon meudon extragalactic database, common name, and a url link to its cmd webpage.
Science and technology resources on the internet astronomical resources on the internet joe kraus. Many ngc objects still go by their initial names simply because they were christened. Multiresolution analysis of cosmological nbody simulations. Mikulski archive for space telescopes mast nasa extragalactic database ned national space science data center nssdc space calendar space telescope science institute stsci spitzer science center ssc gravitational wave astrophysics links. The simbad astronomical database provides basic data, crossidentifications and bibliography for astronomical objects outside the solar system. Extensive database of numerous galaxy catalogues includes more than 100,000 galaxies, each with detailed information. The principal galaxies catalogue pgc, published in 1989, was based on the lyon meudon extragalactic database and contained crossidentifications for it. Ultimately ive been chasing open clusters but when deciding which open cluster to include for the night i am faced with a problem. Links to related web sites nasaipac extragalactic database. Leda lyonmeudon extragalactic database the pgcrom 1996 gives access to the largest compilation of individual galaxies ever made. Suitable for high school and college classes, and many of the programs are adapted for nonscience. For each group we search the nasaipac extragalactic database ned and the lyon meudon extragalactic database leda for galaxies lying within the group virial radius in pro jection on the sky, and having recession velocities within three times the group velocity dispersion from the catalogued group mean. We present longslit and panoramic spectroscopy of extended gaseous disks in 18 s0 galaxies, mostly in groups. Since several years online databases simbad at the astronomical data center strasbourg, cds and the nasaipac extragalactic database ned nasaipac extragalactic database usa, pasadena, and the lyonmeudon extragalactic database leda, lyon provide astronomers the main free.
Kp is for the nrao 12 m telescope, i is for the iram. The crossidentification with galaxies available in the lyon meudon extragalactic database leda allows a calibration of the iband photometry with the sample of mathewson et al. The hyper lyonmeudon extragalactic database hyperleda catalog provides nearly 7000 distance estimates for more than 2000 galaxies found in 430 references makarov et al. The gas kinematics, excitation, and chemistry, in connection.
A 12co10 survey of spiral galaxies in the region of the. It consists in a database and tools to process that data according to the users requirements. Wilson 60inch to investigate the rotation of the great nebula in. The lyonmeudon extragalactic database springerlink. The rotation of galaxies was discovered in 1914, when slipher 1914 detected inclined absorption lines in the nuclear spectra of m31 and the sombrero galaxy, and wolf 1914 detected inclined lines in the nuclear spectrum of m81.
The spectral model included thermal xray emission from the galaxy and its environment apec component in our spectral model, unresolved lowmass xray binaries lmxb. Astronomical databases and virtual observatories surfing. All three involve the concept of an astronomical objectname resolver, which accept and return identifiers. Apr 22, 2016 page 1 of 2 reliable open cluster database. The smaller, flatter, bright galaxy sitting just below ngc 4424 is named leda 2994. Lyon meudon extragalactic database, 1 cd, 2 disks pkscat90. Chemically decoupled nuclei in five lenticular galaxies from sauron data. For each group we search the nasaipac extragalactic database ned and the lyonmeudon extragalactic database leda for galaxies lying within the group virial radius in pro jection on the sky, and having recession velocities within three times the group velocity dispersion from the catalogued group mean. The cmdstrgb index page of the database lists each galaxys principal galaxy cataloglyon meudon extragalactic database pgcleda number, common name, hst observing program number, and camera used. It gives more than 60 of the most important parameters for about one million galaxies. Since this time, the database has been continuously updated and improved.
Lyon meudon extragalactic database leda leicester database and archive service ledas. The lyon meudon extragalactic database leda was a database of galaxies, created in 1983 at the lyon observatory. Historical introduction nasaipac extragalactic database. The lyonmeudon extragalactic database leda gives a free access to the main astrophysical parameters for more than 100 000 galaxies. Each galaxy had a number assigned to it, which is now known as its pgc number. The software section describes the software programs that can be downloaded to student computers. Lyon meudon extragalactic database leda, containing detailed information on 161,000 galaxies. Leda lyonmeudon extragalactic database padova database of stellar evolutionary tracks and isochrones galev galaxy evolutionary synthesis models. The site contains project updates, news, software information, and a place to submit comments. Make changes to the properties that need an update.
Finally, the extragalactic distances database edd, an ongoing project by tully et al. A glossary of leda astrophysical prarameters is included. Leda lyon meudon extragalactic database padova database of stellar evolutionary tracks and isochrones galev galaxy evolutionary synthesis models. The site contains project updates, news, software information, and a. The galaxy database includes the following masterful collection of galaxy catalogues. The authors describe the scientific content and the structure of the leda database and present a concise instruction for access and information retrieval from leda. Mar 31, 2017 the smaller, flatter, bright galaxy sitting just below ngc 4424 is named leda 2994. I have compared the sac database with other databases like wikisky and the ngcic project and there are some. Multimission archive at space telescope mast pds planetary data system. Harris catalog of globular clusters in the milky way containing extensive information on all known globular clusters in this galaxy. Pdf chemically decoupled nuclei in five lenticular galaxies. It was created using an automatic galaxy recognition program based on a. Each entry is indexed by its pgcleda number rather than its common name in order to prevent.
Lyonmeudon extragalactic database leda leicester database. I have compared the sac database with other databases like wikisky and the ngcic project and there are some inconsistencies with the. Deepsky and star database search reports on single catalogs contain the essential data present in all catalogs ra, declination, constellation, star atlas cross references, etc, but importantly, the database remains true to the original catalog contents so that reports contain the additional data unique to each catalog. Contains information for about 3 million objects, with 7. Lyonmeudon extragalactic database, 1 cd, 2 disks pkscat90. Liner type active galaxy nucleus refers to a lowionization nuclear emissionline region for a type of active galaxy. Lyon meudon extragalactic database leda created in 1983, leda is the oldest extragalactic database. Leda definition, etymology and usage, examples and. We derived absolute magnitudes following the prescription in leda, using the listed heliocentric velocities and apparent magnitudes. The 60% of the survey covered by the 25m and analyzed in this paper is shown by the dashed line. All the data and the software is publicly available in opensource for.
The scientific goal which motivates the development of hyperleda is the study of the physics and evolution of galaxies. To face this problem, one of us gp decided to rationalize the management by creating a database. Cats, nasaipac extragalactic database ned, and lyonmeudon extragalactic database leda. The lyonmeudon extragalactic database leda was a database of galaxies, created in 1983 at the lyon observatory. Apr 21, 2020 nasaipac extragalactic database ned lyon meudon extragalactic database leda cadc canadian astronomy data centre. Nasa extragalactic database ned lyonmeudon extragalactic database national space science data. The first step is a minimum for any database, because forgetting it could result in the loss of metadata, for example if the creators of the database leave. The crossidentification with galaxies available in the lyonmeudon extragalactic database leda allows a calibration of the iband photometry with the sample of mathewson et al. Reeds astronomy links this is a compilation of links to internet servers which provide useful information pertaining to astronomy, astrophysics, or space science.
In addition, a batch mode is available and also a very powerful sqllike query language. Photometry, kinematics spectrophotometry, archive of fits data. Online statistical software for astronomy and related. Spatial distribution of dogs sources indicated by combined with lyonmeudon extragalactic database leda galaxies out to v 4000 km s1. The lyon meudon extragalactic database leda is far more modern than the ngc and contains millions of objects. Nasaipac extragalactic database ned lyonmeudon extragalactic database leda cadc canadian astronomy data centre. Permission is granted to copy, distribute andor modify this document under the terms of the gnu free documentation license, version 1. International virtual observatory alliance ivoa libraries of stellar spectra montes. Comprehensive sample programs in fortran are also provided on the cdrom. Nasa extragalactic database ned lyonmeudon extragalactic database national space science data center nasa common catalog names. Astronomy software modas optical design aberrator star testing. Liners are characterized by extremely bright, starlike central.
Cataloglyon meudon extragalactic database, common name, hst observing program number, and camera. Based on a detailed photometric study of ugc 5600 in the. A copy of the license is included in the section entitled gnu free documentation license. The lyonmeudon extragalactic database leda is far more modern than the ngc and contains millions of objects.
Each entry is indexed by its pgcleda number rather than its common name in order to prevent a single galaxy from being listed twice in the. Leda lyon meudon extragalactic database the pgcrom 1996 gives access to the largest compilation of individual galaxies ever made. Each entry is indexed by its pgcleda number rather than its common name in order to prevent a single galaxy from being listed twice in the database. Each entry is indexed by its each entry is indexed by its support for the improved principal galaxy catalog pgc with 900,000 galaxies.
The second step, formalizing all metadata information, is the most difficult, but results in better quality and selfconsistency for the database. B were taken from the lyonmeudon extragalactic database leda. Lyonmeudon extragalactic database metadata this file contains additional information such as exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. An hour with leo trio beginning and intermediate imaging. The main astrophysical parameters are provided for more than 100,000 galaxies. The cmdstrgb index page of the database lists each galaxys principal galaxy catalog lyon meudon extragalactic database pgcleda number, common name, hst observing program number, and camera used. Full text of 2d spectroscopy of candidate polarring.
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