TidalDisruptionEvent#

class uvex_transients.transients.TDEs.TidalDisruptionEvent(cosmology: Cosmology | None = None)[source]#

Optical/UV tidal disruption event (TDE) population.

Modeled with VanVelzenTDESED (a Gaussian-rise/exponential-decay light curve with a constant-temperature blackbody photosphere, calibrated against the ZTF TDE sample of Van Velzen et al. 2021), a constant volumetric rate of \(3.1\times10^{-7}\ \mathrm{Mpc}^{-3}\,\mathrm{yr}^{-1}\) out to \(z=2\) (Yao et al. 2023), and a 200-day duration window.

See also

uvex_transients.models.tdes.van_velzen.VanVelzenTDESED: The SED this class pairs with DEFAULT_MODEL.
uvex_transients.transients.base.ExtragalacticTransient: The base class supplying rate/sampling machinery.

Methods

`compute_all_sky_yield`(duration)	Compute the expected intrinsic event count over the full sky.
`compute_all_sky_yield_ci`(duration)	Compute rate-only bounds on the expected all-sky intrinsic event count.
`event_rate`(z)	Compute the comoving event rate density at redshift(s) z, \(R(z;A)=A f(z)\).
`rate_shape`(z)	Return the (trivial, constant) rate shape of TDEs at a given redshift.
`registry`()	dict[str, type[TransientBase]]: A copy of every concrete subclass imported so far, keyed by class name.
`sample_event_count`(solid_angle[, duration, ...])	Sample the number of events in a given solid angle and duration.
`sample_event_redshift`(n_samples, *[, rng])	Draw n_samples redshifts from the rate-weighted redshift distribution.
`sample_events_on_healpix_grid`(nside, *, t_start)	Draw a Monte Carlo realization of events on a HEALPix grid, over a time window.

Attributes

`DEFAULT_DURATION`	The duration of this transient.
`DEFAULT_Z_GRID_SIZE`
`DEFAULT_Z_LIM`
`RATE_CI`	Multiplicative (lower, upper) 90% confidence factors on rate.
`all_sky_rate`	Expected all-sky event rate per observer year.
`all_sky_rate_ci`	Rate-only bounds on `all_sky_rate`.
`cosmology`	The cosmology used for luminosity-distance/volume calculations.
`duration_limit`	Upper bound on this transient's total duration.
`effective_volume`	\(\mathcal V\), the all-sky rate-weighted comoving volume.
`integrated_rate`	Expected event rate per observer time and solid angle.
`integrated_rate_ci`	Rate-only bounds on `integrated_rate`.
`luminosity_distance_grid`	\(D_L(z)\) at each point of redshift_grid.
`rate`	The volumetric TDE rate, constant in \(z\) (Yao et al. 2023).
`rate_ci`	`(R_L, R_U)`, the confidence bounds on rate.
`redshift_grid`	The cached redshift grid backing integrated_rate/sampling.
`redshift_grid_size`	Number of points in redshift_grid; reassigning invalidates the rate cache.
`redshift_limit`	Upper redshift bound of redshift_grid; reassigning invalidates the rate cache.
`sed`	This instance's SED -- flux, magnitude, and spectrum evaluation all live here.