Astrophysics (Index)About

transient

(transient astronomical event)
(observed change in the sky)

A transient is an observed phenomenon in the sky involving a change, such as the appearance of an astronomical body or a change in its appearance. Their general study is termed transient astronomy. They are detected by observing an area of the celestial sphere more than once and noting the differences. Some projects, missions, and surveys are specifically to discover them, for further study. Numerous observed occurrences and event types fall under the broad category of transients, thus a survey aimed at finding one phenomenon often yields discoveries of unrelated phenomena:

The movement of minor planets and comets through the celestial sphere are less often referred to as transients, but surveys aimed at changes do discover and record them as well, and surveys hunting for them discover transients. Transients are also categorized by the type of EMR under which they were observed, radio, infrared, etc. Some terms;

The term transient also includes GW events and neutrino bursts.


(astronomy)
Further reading:
http://en.wikipedia.org/wiki/Transient_astronomical_event
http://en.wikipedia.org/wiki/X-ray_transient
PrefixExample  
ATAT 2017gfogeneral transient prefix

Referenced by pages:
ALEXIS
All Sky Automated Survey (ASAS)
All Sky Automated Survey for SuperNovae (ASAS-SN)
Australian Square Kilometre Array Pathfinder (ASKAP)
Astrocats
Astrolux
black hole shadow
binary star
binding energy
blind survey
cadence
calcium-rich gap transient
CFHTLS
Compton Gamma Ray Observatory (CGRO)
Canadian Hydrogen Intensity Mapping Experiment (CHIME)
commensal mode
common envelope
Catalina Sky Survey (CSS)
data folding
dispersion measure (DM)
DSA-2000
Earth rotation synthesis
EROS
electronic very-long-baseline interferometry (e-VLBI)
fast radio burst (FRB)
FU Orionis star (FUor)
gamma rays (GR)
GMAN
GRANAT
gravitational lensing
gamma-ray burst (GRB)
guest star
GW170817
High Energy Transient Explorer (HETE)
hypermassive neutron star (HMNS)
integration time
KELT
Kepler Telescope
kilonova (KN)
light cone
light curve
light echo
lightkurve
Livermore Optical Transient Imaging System (LOTIS)
luminous red nova (LRN)
LaSilla-QUEST Variability Survey (LSQ)
Rubin Observatory (VRO)
MACHO Project
MASTER Robotic Net
MAXI
Medium Deep Survey (MDS)
MEarth Project (MEarth)
MicroFUN (μFUN)
MOA
multi-messenger astronomy
MIT X-ray Burst Source Catalog (MXB)
nova (N)
Palomar 48 Inch Telescope (P48)
PALFA
Pan-STARRS
PESSTO
Pi of the Sky
pipeline
Probing Lensing Anomalies Network (PLANET)
plate
POINT-AGAPE
parts per million (PPM)
Palomar Transient Factory (PTF)
Qatar Exoplanet Survey (QES)
RAPTOR
Roemer delay
ROTSE
rotating radio transient (RRAT)
Shapiro delay
supernova impostor
SPACEWATCH
SPIRITS
stacking
standard siren
STARE
STAR-X
STEREO
Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS)
Transiting Exoplanet Survey Satellite (TESS)
Transient Name Server (TNS)
transient astronomy
Trans-Atlantic Exoplanet Survey (TrES)
ULTRASAT
UTMOST
Roman Space Telescope (RST)
XO Project

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