Horizon distance of stellar-mass source 4.5 yr

FoM

Science investigation and Observational requirement: SI1.1, SI1.2, SI4.1, SI4.2 OR1.1.a, OR1.2.b, OR4.1, OR4.2 from Science requirement document.

Compute horizon distance to the most representative binaries. Model agnostic approach.

- OK 0.03 [0.01 0.03 0.04] : Horizon distance of ~ accreting Double White Dwarfs at f = 0.00300 Hz.

- OK 0.06 [0.03 0.06 0.09] : Horizon distance of ~ detached Double White Dwarfs at f = 0.00300 Hz.

- OK 0.15 [0.08 0.15 0.2] : Horizon distance of ~ supernova type Ia progenitor at f = 0.00300 Hz.

- OK 0.81 [0.1 0.8 1.2] : Horizon distance of ~ supernova type Ia progenitor at f = 0.03500 Hz.

- OK 0.26 [0.15 0.25 0.35] : Horizon distance of ~ binary neutron stars at f = 0.00300 Hz.

- OK 0.7 [0.4 0.7 1.0] : Horizon distance of ~ neutron star - low mass black hole at f = 0.00300 Hz.

- OK 1.15 [0.6 1.1 1.6] : Horizon distance of ~ neutron star - high mass black hole at f = 0.00300 Hz.

Capability to detect a resolved stellar-mass source out to specific horizon distances

Summary

Plot of distance out to which LISA binaries can be detected as a function of GW frequency.

We have assumed 4.5 yr years of observation with 0.82 duty cycle and SNR threshold: 7.0

Conducting monte-carlo over 2000 trials, randomizing sky position and orientation.

Type Mass Freq Max mean distance [kpc] Mean distance [kpc]
iGB 0.6-0.25 0.003000 50.385 29.291
dGB 0.6-0.6 0.003000 107.794 62.665
snGB 1.0-1.0 0.003000 252.547 146.816
snGB-b 1.0-1.0 0.035000 1417.791 814.171
NSNS 1.4-1.4 0.003000 442.480 257.232
NSBHl 1.4-5 0.003000 1199.688 697.429
NSBHh 1.4-10 0.003000 1979.356 1150.684

Detailed results

Input parameters


- log : log/SO1c_horizon.log
- config : config.yml
- subconfig : 
- duration : 4.5 yr
- duty_cycle : 0.82
- armlength : 2500000000.0 m
- noise : SciRDv1_redbook/noise_background_4.5_yr.npy
- show : False
- fast : 0
- tdi2 : 1
- freqs : [2e-05, 1]
- force_duration : 4.5_yr
- timestep : 15.0
- report : SciRDv1_redbook/report_SO1c_horizon.md
- random_seed : 6137
- nproc : 24
- Dmax : False

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Horizon distance data