Difference between revisions of "Triggers"

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===Possible triggers for Science Alerts===
 
===Possible triggers for Science Alerts===
  
* [[Triggers:Supernovae | Supernovae]]
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* [[Triggers:Asteroids | Asteroids]]
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* [[Triggers:Be | Be-type stars]]
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* [[Triggers:CVs | Cataclysmic Variables (CVs)]]
  
 
* [[Triggers:CNe | Classical novae]]
 
* [[Triggers:CNe | Classical novae]]
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* [[Triggers:DNe | Dwarf novae]]
 
* [[Triggers:DNe | Dwarf novae]]
  
* [[Triggers:Microlensing | Microlensing events]]
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* [[Triggers:GRBs | Gamma Ray Bursts Optical Counterparts]]
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* [[Triggers:LensedSNe | Gravitationally lensed supernovae]]
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* [[Triggers:LBVs | Luminous Blue Variables]]
  
 
* [[Triggers:Flares | M-dwarf flares]]
 
* [[Triggers:Flares | M-dwarf flares]]
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* [[Triggers:Microlensing | Microlensing events]]
  
 
* [[Triggers:RCrB | R Coronae Borealis type variables (dimming objects)]]
 
* [[Triggers:RCrB | R Coronae Borealis type variables (dimming objects)]]
  
* [[Triggers:FUOri | FU Orionis-type eruptive stars]]
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* [[Triggers:Supernovae | Supernovae]]
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* [[Triggers:TTau | T Tauri stars and other Young variables]]
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** [[Triggers:FUOri | Eruptive young stellar objects]]
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** [[Triggers:YSOecl | Eclipsing young stellar objects]]
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* [[Triggers:XBs | X-ray binaries (XBs)]]
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* [[Triggers:Other | Other rare transients]]
 
* [[Triggers:Other | Other rare transients]]
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* [[Triggers:Theoretical | Exotic/theoretical events]]
  
 
== Table of transients ==
 
== Table of transients ==
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CMD paths of various types of variable stars, including Be stars, R CrB and V4334 Sgr. From [http://arxiv.org/abs/0907.4090 Spano et al. 2009]
 
CMD paths of various types of variable stars, including Be stars, R CrB and V4334 Sgr. From [http://arxiv.org/abs/0907.4090 Spano et al. 2009]
  
[[File:VariablesPathsCMDLMC.png|400px]]
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[[File:VariablesPathsCMDLMC.png|650px]]
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----
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== Time scales and amplitudes ==
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[[File:Kulkarni-absmag-timescale.png|400px|left|thumb|Absolute magnitude vs timescale of novae, supernovae and some of new transients. From Kulkarni (2009).]]
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[[File:plot_transients_tau_ampl.png|400px]]
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[[File:plot_transients_trise_ampl.png|400px]]
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[[File:plot_transients_tdecline_ampl.png|400px]]
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[[File:plot_transients_trise_tdecline.png|400px]]

Latest revision as of 16:14, 26 July 2013

Please expand this section with your favourite types of possible alerts. The most useful information would be the number statistics, amplitude and timescale, example light curve, spectrum and the reasoning for an rapid alert.

Possible triggers for Science Alerts


Table of transients

This table is based on Rau et al. 2009 on Palomar Transient Factory (PTF). MR is an absolute magnitude in R, tau is time of a decline by 2 mag. Note, these are not all the types of transites Gaia will detect.

Class MR tau Universal rate Gaia rate
Dwarf Novae 9..4 3..20 <math>3\times10^{-5} \textrm{pc}^{-3} \textrm{yr}^{-1}</math>
Classical Novae -5..-10 2..100 <math>2\times10^{-10} \textrm{yr}^{-1}\textrm{L}_{\odot,K}^{-1}</math>
Luminous Red Novae -10..-14 20..60 <math>1.5\times10^{-13} \textrm{yr}^{-1}\textrm{L}_{\odot,K}^{-1}</math>
Fallback SNe -4..-21 0.5..2 <math>10^{-13} \textrm{yr}^{-1}\textrm{L}_{\odot,K}^{-1}</math>
Macronovae -13..-15 0.3..3 <math>10^{-4..-8} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
SN .Ia -15..-17 2..5 <math>(4..10)\times 10^{-6} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
SNe Ia -17..-19.5 30..70 <math>3\times 10^{-5} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
Tidal disruption flares -15..-19 30..350 <math>10^{-6} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
Core-collapse SNe -14..-21 20..300 <math>5\times 10^{-5} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
Luminous SNe -19..-23 50..400 <math>10^{-7} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
Orphan afterglows (SGRB) -14..-18 5..15 <math>3\times 10^{-7..-9} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
Orphan afterglows (LGRB) -22..-26 2..15 <math>3\times 10^{-7..-9} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>
On-axis LGRB afterglows ..-37 1..15 <math>4\times 10^{-10} \textrm{Mpc}^{-3} \textrm{yr}^{-1}</math>

CMD of selected variables and transients

CMD paths of various types of variable stars, including Be stars, R CrB and V4334 Sgr. From Spano et al. 2009

VariablesPathsCMDLMC.png


Time scales and amplitudes

Absolute magnitude vs timescale of novae, supernovae and some of new transients. From Kulkarni (2009).

Plot transients tau ampl.png Plot transients trise ampl.png Plot transients tdecline ampl.png Plot transients trise tdecline.png