Tidal Disruption Event Demographics with the Zwicky Transient Facility: Volumetric Rates, Luminosity Function, and Implications for the Local Black Hole Mass Function

被引:114
作者
Yao, Yuhan [1 ,2 ,3 ]
Ravi, Vikram [1 ]
Gezari, Suvi [4 ,5 ]
van Velzen, Sjoert [6 ]
Lu, Wenbin [3 ]
Schulze, Steve [7 ]
Somalwar, Jean J. [1 ]
Kulkarni, S. R. [1 ]
Hammerstein, Erica [8 ]
Nicholl, Matt [9 ,10 ,11 ]
Graham, Matthew J. [1 ]
Perley, Daniel A. [12 ]
Cenko, S. Bradley [13 ,14 ]
Stein, Robert [1 ]
Ricarte, Angelo [15 ,16 ]
Chadayammuri, Urmila [15 ]
Quataert, Eliot [17 ]
Bellm, Eric C. [18 ]
Bloom, Joshua S. [3 ]
Dekany, Richard [19 ]
Drake, Andrew J. [1 ]
Groom, Steven L. [20 ]
Mahabal, Ashish A. [21 ,22 ]
Prince, Thomas A. [1 ]
Riddle, Reed [19 ]
Rusholme, Ben [20 ]
Sharma, Yashvi [1 ]
Sollerman, Jesper [23 ]
Yan, Lin [1 ]
机构
[1] CALTECH, Cahill Ctr Astrophys, MC 249-17,1200 E Calif Blvd, Pasadena, CA 91125 USA
[2] Miller Inst Basic Res Sci, 468 Donner Lab, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
[4] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
[5] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[6] Leiden Univ, Leiden Observ, Postbus 9513, NL-2300 RA Leiden, Netherlands
[7] Stockholm Univ, Oskar Klein Ctr, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden
[8] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[9] Univ Birmingham, Birmingham Inst Gravitat Wave Astron, Birmingham B15 2TT, England
[10] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, England
[11] Queens Univ Belfast, Astrophys Res Ctr, Sch Math & Phys, Belfast BT7 1NN, North Ireland
[12] Liverpool John Moores Univ, Astrophys Res Inst, IC2, Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, England
[13] NASA Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA
[14] Joint Space Sci Inst Univ Maryland, College Pk, MD 20742 USA
[15] Harvard & Smithsonian, Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA
[16] Harvard Univ, Black Hole Initiat, 20 Garden St, Cambridge, MA 02138 USA
[17] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA
[18] Univ Washington, DIRAC Inst, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USA
[19] CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA
[20] CALTECH, IPAC, 1200 E Calif Blvd, Pasadena, CA 91125 USA
[21] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA
[22] CALTECH, Ctr Data Driven Discovery, Pasadena, CA 91125 USA
[23] Stockholm Univ, Oskar Klein Ctr, Dept Astron, AlbaNova, SE-10691 Stockholm, Sweden
关键词
DIGITAL SKY SURVEY; GALAXY STELLAR MASS; X-RAY; HOST GALAXIES; OPTICAL TRANSIENTS; LOW-RESOLUTION; DISC FORMATION; DATA RELEASE; EVOLUTION; STARS;
D O I
10.3847/2041-8213/acf216
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We conduct a systematic tidal disruption event (TDE) demographics analysis using the largest sample of optically selected TDEs. A flux-limited, spectroscopically complete sample of 33 TDEs is constructed using the Zwicky Transient Facility over 3 yr (from 2018 October to 2021 September). We infer the black hole (BH) mass (M BH) with host galaxy scaling relations, showing that the sample M BH ranges from 105.1 M & ODOT; to 108.2 M & ODOT;. We developed a survey efficiency corrected maximum volume method to infer the rates. The rest-frame g-band luminosity function can be well described by a broken power law of & phi;(Lg)& PROP;Lg/Lbk0.3+Lg/Lbk2.6-1 , with L bk = 1043.1 erg s-1. In the BH mass regime of 105.3 & LSIM; (M BH/M & ODOT;) & LSIM; 107.3, the TDE mass function follows & phi;(MBH)& PROP;MBH-0.25 , which favors a flat local BH mass function ( dnBH/dlogMBH & AP;constant ). We confirm the significant rate suppression at the high-mass end (M BH & GSIM; 107.5 M & ODOT;), which is consistent with theoretical predictions considering direct capture of hydrogen-burning stars by the event horizon. At a host galaxy mass of M gal & SIM; 1010 M & ODOT;, the average optical TDE rate is & AP;3.2 x 10-5 galaxy-1 yr-1. We constrain the optical TDE rate to be [3.7, 7.4, and 1.6] x 10-5 galaxy-1 yr-1 in galaxies with red, green, and blue colors.
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