A variable star that shows a sudden and dramatic change in brightness, including flare stars, novae, and some types of symbiotic stars. They are believed to be very close binary systems consisting of
an accreting white dwarf primary and an evolved late-type secondary star that has filled its Roche lobe. For systems with an accretion disk, it is believed that a thermal instability is the cause of repetitive outbursts observed in cataclysmic variables called dwarf novae.
A variable star that shows a sudden and dramatic change in brightness, including flare stars, novae, and some types of symbiotic stars. They are believed to be very close binary systems consisting of
an accreting white dwarf primary and an evolved late-type secondary star that has filled its Roche lobe. For systems with an accretion disk, it is believed that a thermal instability is the cause of repetitive outbursts observed in cataclysmic variables called dwarf novae.
A tabular listing of events or observationalnotes, especially those that have utility in aiding a user in locating data.Catalogs include lists of events, files in a product, and data availability.A Ca
talog resource is a type of "data product" which is a set of data thatis uniformly processed and formatted, from one or more instruments,typically spanning the full duration of the observations of the relevantinstrument(s). A data product may consist of a collection of granules ofsuccessive time spans, but may be a single high-level entity.
A tabular listing of events or observational notes, especially those that have utility in aiding a user in locating data. Catalogues include lists of events, files in a product, and data availability.
A tabular listing of events or observational notes, especially those that have utility in aiding a user in locating data. Catalogues include lists of events, files in a product, and data availability.
Software that implements a searchable metadata register. The application must support the ability to register information resources by creating new metadata records, to search the registered metadata,
to support the discovery and binding to registered information resources within an information community.