The NANOGrav 15-year Search for New Physics Signals - model files

PTArcade model files used in the paper "The NANOGrav 15 yr Data Set: Search for Signals from New Physics".

The tabulated data used to define some of the signals is provided in the 'models_data' folder.

Refer to the PTArcade documentation page for details on how PTArcade model files are defined and used.

The naming convention for the files is the following:

• igw: inflationary Gravitational Waves (GWs)
• sigw: scalar-induced GWs
  • sigw_box: assumes a box-like feature in the primordial power spectrum.
  • sigw_delta: assumes a delta-like feature in the primordial power spectrum.
  • sigw_gauss: assumes a gaussian peak feature in the primordial power spectrum.
• pt: cosmological phase transitions
  • pt_bubble: assumes that the dominant contribution to the GW productions comes from bubble collisions.
  • pt_sound: assumes that the dominant contribution to the GW productions comes from sound waves.
• stable: stable cosmic strings
  • stable-c: stable strings emitting GWs only in the form of GW bursts from cusps on closed loops.
  • stable-k: stable strings emitting GWs only in the form of GW bursts from kinks on closed loops.
  • stable-m: stable strings emitting monochromatic GW at the fundamental frequency.
  • stable-n: stable strings described by numerical simulations including GWs from cusps and kinks.
• meta: metastable cosmic strings
  • meta-l: metastable strings with GW emission from loops only.
  • meta-ls metastable strings with GW emission from loops and segments.
• super: cosmic superstrings.
• dw: domain walls
  • dw-sm: domain walls decaying into Standard Model particles.
  • dw-dr: domain walls decaying into dark radiation.
• uldm_e: ULDM Earth signal.

• uldm_c: ULDM combined Earth + pulsar signal for direct coupling
  • uldm_c_cor: correlated limit
  • uldm_c_unc: uncorrelated limit

• uldm_vecB: vector ULDM coupled to the baryon number
  • uldm_vecB_cor: correlated limit
  • uldm_vecB_unc: uncorrelated limit
• uldm_vecBL: vector ULDM coupled to B-L
  • uldm_vecBL_cor: correlated limit
  • uldm_vecBL_unc: uncorrelated limit
• uldm_p: ULDM pulsar signal
  • uldm_p_cor: ULDM pulsar signal in the correlated limit.
  • uldm_p_unc: ULDM pulsar signal in the uncorrelated limit.
• pbh_dynamic: substructure signal in the dynamic limit.
• pbh_static: substructure signal in the static limit.