# TESS Program G06156 Title: Searching For Type I (Thermonuclear) X-Ray Bursts With TESS PI: Kashyap, Unnati - Texas Tech University Type: SMALL Summary: We request 20-second cadence data for 33 neutron stars accreting from low mass binary companions to search for their thermonuclear bursts. These bursts start as X-ray flares of durations typically of about 10-100 seconds, and the X-rays then heat the outer parts of the accretion disks so part of their emission is reprocessed into the optical band. The recurrence time of the bursts is set by the time it takes to accrete a pile that heats up enough to trigger CNO burning, and understanding the recurrence time as a function of accretion rate yields key information about nuclear physics. TESS's continuous coverage and wide field are needed to estimate the recurrence times, which have been hard-to-impossible to measure over the 50 years in which these bursts have been observed to date. # Sector 072 targets observed (2 min: 1, 20 s: 1) 277798746,155.9487,0.6446,15.86,G06156;G06027;20SECONDTARGET # Sector 073 targets observed (2 min: 1, 20 s: 1) 468839631,93.0998,70.2114,17.04,G06156;20SECONDTARGET # Sector 074 targets observed (2 min: 1, 20 s: 1) 139154287,295.3089,40.2354,14.03,G06156;20SECONDTARGET # Sector 075 targets observed (2 min: 1, 20 s: 1) 64420247,309.2522,41.8276,16.18,G06156;20SECONDTARGET # Sector 076 targets observed (2 min: 2, 20 s: 2) 64420247,309.2522,41.8276,16.18,G06156;20SECONDTARGET 316957286,336.2235,54.3598,16.58,G06156;20SECONDTARGET # Sector 077 targets observed (2 min: 2, 20 s: 2) 316957286,336.2235,54.3598,16.58,G06156;20SECONDTARGET 10001815162,350.1419,62.2926,15.85,G06156;20SECONDTARGET # Sector 078 targets observed (2 min: 3, 20 s: 3) 341738544,254.4575,35.3423,13.57,G06156;20SECONDTARGET 10001815162,350.1419,62.2926,15.85,G06156;20SECONDTARGET 320181784,7.2658,59.5683,16.17,G06156;20SECONDTARGET # Sector 079 targets observed (2 min: 1, 20 s: 1) 341738544,254.4575,35.3423,13.57,G06156;20SECONDTARGET # Sector 080 targets observed (2 min: 17, 20 s: 17) 1672934715,279.9898,5.0359,18.08,G06156;20SECONDTARGET 1773731751,282.2213,-1.4867,18.17,G06156;20SECONDTARGET 1781643868,282.5135,-0.9408,19.35,G06156;20SECONDTARGET 180008154,287.1121,0.1672,18.51,G06156;20SECONDTARGET 181319374,287.8169,0.5849,18.1,G06156;20SECONDTARGET 228510254,285.4186,1.45,16.39,G06156;20SECONDTARGET 506682242,276.3447,-0.0128,19.58,G06156;20SECONDTARGET 111931792,274.0058,-14.0366,16.24,G06156;20SECONDTARGET 1656357887,274.3956,-15.5102,16.73,G06156;20SECONDTARGET 1659306998,273.7766,-12.0995,20.44,G06156;20SECONDTARGET 206020247,272.6785,-10.8707,15.82,G06156;20SECONDTARGET 213251519,277.1407,-10.6177,13.54,G06156;20SECONDTARGET 213256422,277.2276,-11.449,16.5,G06156;20SECONDTARGET 161851329,289.7204,-5.2549,16.43,G06156;20SECONDTARGET 1756263370,283.2704,-8.7055,18.09,G06156;20SECONDTARGET 1760206072,289.6994,-5.2382,20.49,G06156;20SECONDTARGET 157301783,274.6832,14.4054,17.39,G06156;20SECONDTARGET # Sector 081 targets observed (2 min: 4, 20 s: 4) 1895714436,299.1577,3.4461,20.68,G06156;20SECONDTARGET 1891067764,295.6583,-3.9171,20.58,G06156;20SECONDTARGET 1919399334,290.0701,14.7038,16.84,G06156;20SECONDTARGET 139154287,295.3089,40.2354,14.03,G06156;20SECONDTARGET # Sector 082 targets observed (2 min: 6, 20 s: 6) 2000203805,322.4924,12.1674,14.45,G06156;20SECONDTARGET 2000204005,322.4934,12.1674,13.05,G06156;20SECONDTARGET 2029417228,320.805,-5.7919,20.3,G06156;20SECONDTARGET 468511196,326.1715,38.3214,14.36,G06156;20SECONDTARGET 139154287,295.3089,40.2354,14.03,G06156;20SECONDTARGET 64420247,309.2522,41.8276,16.18,G06156;20SECONDTARGET # Sector 083 targets observed (2 min: 2, 20 s: 2) 468511196,326.1715,38.3214,14.36,G06156;20SECONDTARGET 316957286,336.2235,54.3598,16.58,G06156;20SECONDTARGET