# TESS Program G06110

Title: Searching For Subdwarf B Long Orbital Period Binary Systems And Single Stars Using The Light Time Delay Method

PI: Otani, Tomomi - Embry-Riddle Aeronautical University

Type: SMALL

Summary: Our group will use pulsation timing methods to obtain the orbital solutions of long-period subdwarf B (sdB) star binaries and search for single sdB stars. The most promising formation scenarios for sdB stars involve the evolution of close binary systems through three different channels: 1) the Common Envelope channel, which produces short-period (P = 0.1-10 d) sdB binary systems; 2) the Roche Lobe Overflow channel, which results in long-period (450 < P < 1400 d) sdB binary systems; and 3) the white-dwarf merger channel, which produces single sdB stars. Observational studies of the orbital parameters of binaries with P > 100 d and the existence of single sdB stars are incomplete using conventional methods. Therefore, pulsation timing methods are suitable for these research areas.


# Sector 070 targets observed (2 min: 4, 20 s: 4)
310937915,346.5932,2.1516,16.09,G06110;G06175;20SECONDTARGET
266013993,12.8622,9.3592,13.89,G06110;G06175;20SECONDTARGET
405212419,4.226,7.075,16.11,G06110;20SECONDTARGET
60985176,29.3662,18.4611,15.34,G06110;G06175;20SECONDTARGET

# Sector 071 targets observed (2 min: 5, 20 s: 5)
60985176,29.3662,18.4611,15.34,G06110;G06175;20SECONDTARGET
673345538,73.8135,13.0916,17.14,G06110;G06175;20SECONDTARGET
68495594,103.3512,33.0595,12.47,G06123;G06110;20SECONDTARGET
69298924,121.7362,15.4555,14.99,G06110;20SECONDTARGET
63168679,118.3714,23.4101,13.84,G06110;G06175;20SECONDTARGET

# Sector 072 targets observed (2 min: 7, 20 s: 7)
68495594,103.3512,33.0595,12.47,G06123;G06110;20SECONDTARGET
69298924,121.7362,15.4555,14.99,G06110;20SECONDTARGET
117354072,131.5499,24.4196,15.76,G06110;G06175;20SECONDTARGET
63168679,118.3714,23.4101,13.84,G06110;G06175;20SECONDTARGET
437043466,134.2053,17.0206,13.03,G06110;G06175;20SECONDTARGET
171649034,159.1622,19.8673,15.44,G06110;20SECONDTARGET
47377536,162.5116,-0.0105,13.7,G06110;G06175;20SECONDTARGET

# Sector 073 targets observed (2 min: 9, 20 s: 9)
355754830,99.9672,51.9502,12.3,G06110;G06175;20SECONDTARGET
88484868,105.8823,62.6072,13.37,G06110;G06150;G06175;20SECONDTARGET
88565376,106.7909,60.6472,15.08,G06110;20SECONDTARGET
396013351,36.8253,73.6031,14.18,G06110;G06175;20SECONDTARGET
402894814,302.8666,70.1646,14.52,G06110;G06175;20SECONDTARGET
441725813,256.2429,73.0785,11.05,G06110;G06150;G06175;G06197;20SECONDTARGET
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
471015194,294.617,58.4043,15.04,G06110;G06175;20SECONDTARGET

# Sector 074 targets observed (2 min: 9, 20 s: 9)
441725813,256.2429,73.0784,11.05,G06110;G06150;G06175;G06197;20SECONDTARGET
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
424720852,294.6354,56.1624,13.44,G06110;20SECONDTARGET
471015194,294.617,58.4043,15.04,G06110;G06175;20SECONDTARGET
159644241,291.2422,47.1315,15.95,G06110;20SECONDTARGET
271164763,294.6359,46.0664,12.46,G06110;G06058;G06165;G06150;G06057;G06175;20SECONDTARGET
63208546,292.2527,44.9497,14.09,G06110;G06150;G06175;20SECONDTARGET
284692897,293.0617,27.9765,13.78,G06110;20SECONDTARGET

# Sector 075 targets observed (2 min: 14, 20 s: 14)
165312944,185.3712,53.0769,13.46,G06110;20SECONDTARGET
138618727,176.81,61.2588,13.6,G06110;G06150;G06175;20SECONDTARGET
202354658,236.2899,59.9181,14.68,G06110;20SECONDTARGET
441725813,256.2429,73.0784,11.05,G06110;G06150;G06175;G06197;20SECONDTARGET
402894814,302.8666,70.1646,14.52,G06110;G06175;20SECONDTARGET
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
258511344,305.5507,66.24,15.29,G06110;G06175;20SECONDTARGET
424720852,294.6354,56.1624,13.44,G06110;20SECONDTARGET
471015194,294.617,58.4043,15.04,G06110;G06175;20SECONDTARGET
159644241,291.2422,47.1315,15.95,G06110;20SECONDTARGET
271164763,294.6359,46.0664,12.46,G06110;G06058;G06165;G06150;G06057;G06175;20SECONDTARGET
63208546,292.2527,44.9497,14.09,G06110;G06150;G06175;20SECONDTARGET
136975077,317.9483,44.2306,13.49,G06110;G06110;20SECONDTARGET

# Sector 076 targets observed (2 min: 13, 20 s: 13)
165312944,185.3712,53.0769,13.46,G06110;20SECONDTARGET
202354658,236.2899,59.9181,14.68,G06110;20SECONDTARGET
207440585,244.8608,56.0996,11.92,G06110;20SECONDTARGET
441725813,256.2429,73.0784,11.05,G06110;G06150;G06175;G06197;20SECONDTARGET
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
424720852,294.6354,56.1624,13.44,G06110;20SECONDTARGET
471015194,294.617,58.4043,15.04,G06110;G06175;20SECONDTARGET
258511344,305.5507,66.24,15.29,G06110;G06175;20SECONDTARGET
402894814,302.8666,70.1646,14.52,G06110;G06175;20SECONDTARGET
136975077,317.9483,44.2306,13.49,G06110;G06110;20SECONDTARGET
372019916,324.5507,41.6884,15.59,G06110;G06150;20SECONDTARGET
2013748140,335.9535,50.5325,18.09,G06110;G06175;20SECONDTARGET

# Sector 077 targets observed (2 min: 11, 20 s: 11)
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
207440585,244.8608,56.0996,11.92,G06110;20SECONDTARGET
202354658,236.2899,59.9181,14.68,G06110;20SECONDTARGET
156073827,237.1803,47.4933,15.91,G06110;G06049;G06028;G06175;20SECONDTARGET
441725813,256.2429,73.0784,11.05,G06110;G06150;G06175;G06197;20SECONDTARGET
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
258511344,305.5507,66.24,15.29,G06110;G06175;20SECONDTARGET
424720852,294.6354,56.1624,13.44,G06110;20SECONDTARGET
471015194,294.617,58.4043,15.04,G06110;G06175;20SECONDTARGET
402894814,302.8666,70.1646,14.52,G06110;G06175;20SECONDTARGET
2013748140,335.9535,50.5325,18.09,G06110;G06175;20SECONDTARGET

# Sector 078 targets observed (2 min: 11, 20 s: 11)
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
202354658,236.2899,59.9181,14.68,G06110;20SECONDTARGET
207440585,244.8608,56.0996,11.92,G06110;20SECONDTARGET
156073827,237.1803,47.4933,15.91,G06110;G06049;G06028;G06175;20SECONDTARGET
115280751,250.5591,42.8761,15.34,G06110;20SECONDTARGET
82359147,254.6742,41.521,15.85,G06110;20SECONDTARGET
441725813,256.2429,73.0784,11.05,G06110;G06150;G06175;G06197;20SECONDTARGET
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
258511344,305.5507,66.24,15.29,G06110;G06175;20SECONDTARGET
402894814,302.8666,70.1646,14.52,G06110;G06175;20SECONDTARGET
396013351,36.8253,73.6031,14.18,G06110;G06175;20SECONDTARGET

# Sector 079 targets observed (2 min: 8, 20 s: 8)
353735596,276.2184,57.7899,16.11,G06110;G06175;20SECONDTARGET
198412771,259.3419,58.0996,16.83,G06110;G06175;20SECONDTARGET
207440585,244.8608,56.0996,11.92,G06110;20SECONDTARGET
115280751,250.5591,42.8761,15.34,G06110;20SECONDTARGET
82359147,254.6742,41.521,15.85,G06110;20SECONDTARGET
402894814,302.8666,70.1646,14.52,G06110;G06175;20SECONDTARGET
407425099,5.6492,73.0676,16.37,G06110;G06175;20SECONDTARGET
396013351,36.8253,73.6031,14.18,G06110;G06175;20SECONDTARGET