Title: The Initial Mass Function Based on the Full-sky 20-pc Census of ~3,600 Stars and Brown Dwarfs Authors: Kirkpatrick J.D., Marocco F., Gelino C.R., Raghu Y., Faherty J.K., Bardalez Gagliuffi D.C., Schurr S.D., Apps K., Schneider A.C., Meisner A.M., Kuchner M.J., Caselden D., Smart R.L., Casewell S.L., Raddi R., Kesseli A., Andersen N.S., Antonini E., Beaulieu P., Bickle T.P., Bilsing M., Chieng R., Colin G., Deen S., Dereveanco A., Doll K., Luca H.A.D., Frazer A., Gantier J.M., Gramaize L., Grant K., Hamlet L.K., Higashimura H., Hyogo M., Jalowiczor P.A., Jonkeren A., Kabatnik M., Kiwy F., Martin D.W., Michaels M.N., Pendrill W., Pessanha Machado C., Pumphrey B., Rothermich A., Russwurm R., Sainio A., Sanchez J., Sapelkin-Tambling F.T., Schumann J., Selg-Mann K., Singh H., Stenner A., Sun G., Tanner C., Thevenot M., Ventura M., Voloshin N.V., Walla J., Wedracki Z., Adorno J.I., Aganze C., Allers K.N., Brooks H., Burgasser A.J., Calamari E., Connor T., Costa E., Eisenhardt P.R., Gagne J., Gerasimov R., Gonzales E.C., Hsu C., Kiman R., Li G., Low R., Mamajek E., Pantoja B.M., Popinchalk M., Rees J.M., Stern D., Suarez G., Theissen C., Tsai C.-W., Vos J.M., Zurek D., The Backyard Worlds: Planet 9 Collaboration Table: Additions to and Subtractions from the 20-pc L, T, and Y Census of Kirkpatrick et al. (2021a) [2021ApJS..253....7K1] ================================================================================ Byte-by-byte Description of file: apjsad24e2t12_mrt.txt -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 A3 --- Change Change from Kirkpatrick et al. (2021a) [2021ApJS..253....7K] 5- 39 A35 --- Name Name 41- 65 A25 --- Reason Reason for Change 67-110 A44 --- r_Reason Reference for Reason, ADS bibcode or this paper 112-115 I4 K Teff Effective temperature (1) 117-119 I3 K e_Teff Uncertainty in Teff (1) 121-121 A1 --- f_Teff Flag on Teff (2) -------------------------------------------------------------------------------- Note (1): For the new additions, temperature values with uncertainties of +/-88K were determined via the M_H_ vs. T_eff_ relation in Table 13 of Kirkpatrick et al. (2021a) [2021ApJS..253....7K] and those with uncertainties of +/-134K or +/-79K were determined with the (assumed) spectral type vs. T_eff_ relations in the same table, unless otherwise noted. For subtractions, the temperature values are taken from table 11 of Kirkpatrick et al. (2021a) [2021ApJS..253....7K]. Note (2): Flags on Teff as follows: b = No information is yet available on this companion, so the temperature estimate is set to cover the spectral type range from late-L to mid-T; c = Temperature estimate is taken from Calissendorff et al. (2023) [2023ApJ...947L..30C], although the uncertainty has been inflated to match the typical uncertainties in Kirkpatrick et al. (2021a) [2021ApJS..253....7K]; d = No information is yet available on this companion, so the temperature estimate is set to cover the spectral type range from early-T to mid-T; e = No information is yet available on this companion, so the temperature estimate is set to cover the spectral type range from mid-L to early-T; f = Little information is available on this companion, so the temperature estimate is set to cover the spectral type range from mid-L to mid-T; g = Temperature estimate is taken from Lodieu et al. (2022) [2022A&A...663A..84L]; h = Winters et al. (2018) [2018AJ....155..125W] conclude this is likely an early-L dwarf, so we set the temperature to cover the typical range for L0 to L4 dwarfs; i = We assume a huge temperature range to encompass the full substellar regime, as Silverstein et al. (2022) [2022AJ....163..151S] is able to provide only limited constraints on this companion; j = The {Delta}{I} magnitude from Cortes-Contreras et al. (2017) [2017A&A...597A..47C] suggests a mid-L dwarf, so we estimate a temperature corresponding to this range; k = We assume a huge temperature range to encompass the full substellar regime, as Winters et al. (2020) [2020AJ....159..290W] is able to provide only an minimum mass of ~44 M_{Jup} for this companion; l = We use the {Delta}{i'} magnitude listed in Bergfors et al. (2010) [2010A&A...520A..54B] to estimate a type of L1, which we use for the temperature estimation; m = We assume a huge temperature range to encompass the full substellar regime, as this object is only known as a likely brown dwarf (Vrijmoet et al. (2022) [2022AJ....163..178V]); n = The M_G_ value derived from Gaia DR3 data suggests an early-T dwarf, and we assign a temperature appropriate for late-L through mid-T given that no spectrum yet exists; p = We base our temperature estimate on the estimated L1 type we derive in Table 4. -------------------------------------------------------------------------------- Add WISE J003110.04+574936.3 B New companion 2021AJ....161...42B 1275 200 b Add CWISE J003507.81-153233.5 New discovery This paper (Table 2) 686 79 Add 2MASSW J0036159+182110 B Overlooked companion 2010ApJ...715..724B 1125 79 Add CWISE J013343.58+803153.1 New discovery This paper (Table 2) 1181 79 Add CWISE J014433.03-545545.5 New discovery This paper (Table 2) 751 79 Add CWISER J021550.96+674017.2 New companion to HD 13579 This paper (Table 2 and Section 2.2) 1125 79 Add CWISER J021612.11+423015.9 New discovery This paper (Table 2) 460 79 Add L 440-30 B (0219-3646) Overlooked companion 2008A&A...483..869K 1613 134 Add Ross 19 B (0219+3518) New companion 2021ApJ...921..140S 460 79 Add CWISE J032600.46+421058.5 New discovery This paper (Table 2) 624 79 Add WISE J033605.05-014350.4 B New companion 2023ApJ...947L..30C 325 79 c Add Wolf 227B (0352+1701) Overlooked companion 2018AJ....155..125W 2000 81 h Add CWISE J035856.18+480244.9 New discovery This paper (Table 2) 511 79 Add L 375-2 B (0432-3947) New discovery 2022AJ....163..151S 1200 333 i Add LP 775-31 B (0435-1606) Overlooked companion 2017A&A...597A..47C 1600 81 j Add Wolf 230 C (0507+1758) Overlooked companion 2020AJ....159..290W 1200 333 k Add CWISE J053046.20+440849.2 New discovery This paper (Table 2) 1125 79 Add CWISE J060938.91+062513.2 New discovery This paper (Table 2) 1420 134 Add DENIS J063001.4-184014 B New companion 2021MNRAS.500.5453S 1420 134 Add DENIS J063001.4-184014 (C) New companion 2021MNRAS.500.5453S 1420 134 Add WISEA J064750.85-154616.4 B New companion 2021AJ....161...42B 1275 200 b Add DENIS J065219.7-253450 Overlooked object Gaia DR3 2196 88 Add PSO J103.0927+41.4601 B (0652+4127) New companion 2021AJ....161...42B 1190 100 d Add CWISE J075227.38+053802.6 New discovery This paper (Table 2) 1273 79 Add CWISE J075853.12-232645.8 New discovery This paper (Table 2) 1209 79 Add L186-67 Ab (0822-5726) Overlooked companion 2010A&A...520A..54B 2091 88 l Add CWISE J083130.98+154018.4 New discovery This paper (Table 2) 566 79 Add CWISE J092710.37-474155.5 New discovery This paper (Table 2) 624 79 Add LP 788-1 B (0931-1717) Overlooked companion 2017AJ....153...14W,2020AJ....160..215V 1200 333 m Add WISEU J100241.49+145914.9 New companion to G 43-23 This paper (Table 2 and Section 2.2) 624 79 Add CWISE J100521.10-691226.8 New discovery This paper (Table 2) 1190 79 Add CWISE J100628.98+105408.5 New discovery This paper (Table 2) 566 79 Add CWISE J105349.12-460239.1 New discovery This paper (Table 2) 686 79 Add 1RXS J121408.0-234516 B New companion Gaia DR3 + This paper (Table 4) 1250 150 n Add e Vir Ab (1316+0925) Overlooked companion 2013ApJ...774...11K,2018A&A...618A..63B 624 79 Add 2MASSW J1326201-272937 B New companion 2021AJ....161...42B 1400 200 e Add WT 460 B (1411-4132) Overlooked companion 2006A&A...460L..19M 2096 134 Add SSSPM J1444-2019 Revised spectral type 2016ApJS..224...36K 2207 88 Add DENIS-P J1454078-660447 B Overlooked companion 2020AJ....160..215V 1100 250 f Add WISEA J153429.75-104303.3 New parallax 2021ApJ...915L...6K] 686 79 Add 2MASS J15345325+1219495 New parallax Gaia DR3 1532 88 Add SCR J1546-5534 B New companion 2022AJ....163..178V 2085 88 p Add CWISE J161546.07+671227.4 New discovery This paper (Table 2) 1254 79 Add CWISE J163336.14-325305.3 New discovery This paper (Table 2) 819 79 Add VVV J165507.19-421755.5 New discovery 2022RNAAS...6..189S and This paper (Table 2) 1125 79 Add DENIS-P J170548.38-051645.7 B Overlooked companion 2014AJ....147...94D 1838 134 Add CWISE J171221.50+495318.2 New discovery This paper (Table 2) 624 79 Add CWISE J171338.81-183322.7 New discovery This paper (Table 2) 1227 79 Add CWISE J173830.94-773024.3 New discovery This paper (Table 2) 624 79 Add 2MASS J17502484-0016151 B Overlooked companion 2018AJ....155..265H 1100 250 f Add CWISE J180308.71-361332.1 New discovery This paper (Table 2) 686 79 Add CWISE J181005.77-101001.2 New parallax 2022A&A...663A..84L 800 100 g Add CWISE J181125.34+665806.4 New discovery + parallax This paper (Table 2 and Section A.3.2) 412 79 Add CWISE J184803.45-143232.3 New companion to G 155-42 This paper (Table 2 and Section 2.2) 686 79 Add CWISE J203438.09-462543.1 New discovery This paper (Table 2) 624 79 Add CWISE J210057.80-624555.4 New discovery This paper (Table 2) 1296 134 Add CWISE J215841.48+732842.8 New discovery This paper (Table 2) 624 79 Add 2MASSW J2224438-015852 B New companion 2021AJ....161...42B 1400 200 e Add CWISE J222701.50+260450.0 New discovery This paper (Table 2) 460 79 Add CWISE J223002.32+424655.3 New discovery This paper (Table 2) 751 79 Add CWISE J224547.21-433341.5 New discovery This paper (Table 2) 686 79 Add CWISE J230930.81+145630.6 New discovery This paper (Table 2) 686 79 Add CWISE J233817.04-732930.3 New discovery This paper (Table 2) 624 79 Add CWISE J233819.49-385421.2 New discovery This paper (Table 2) 1254 79 Add CWISE J235120.60-700026.2 New discovery This paper (Table 2) 460 79 Sub CWISE J061741.79+194512.8 A Revised distance estimate 2023RNAAS...7..184H 1465 134 Sub CWISE J061741.79+194512.8 B Revised distance estimate 2023RNAAS...7..184H 686 79 Sub Kelu-1 A (1305-2541) New parallax Gaia DR3 1931 134 Sub Kelu-1 B (1305-2541) New parallax Gaia DR3 1750 134 Sub 2MASSI J1526140+204341 New parallax Gaia DR3 1518 157 Sub SDSS J163022.92+081822.0 New parallax This paper (Section A.3.1) 970 88 Sub 2MASS J23174712-4838501 New parallax Gaia DR3 1537 197 Sub 2MASS J23312378-4718274 New parallax This paper (Section A.3.1) 1125 79