| Autor: |
Kasliwal, Mansi M., Anand, Shreya, Ahumada, Tomas, Stein, Robert, Carracedo, Ana Sagues, Andreoni, Igor, Coughlin, Michael W., Singer, Leo P., Kool, Erik C., De, Kishalay, Kumar, Harsh, AlMualla, Mouza, Yao, Yuhan, Bulla, Mattia, Dobie, Dougal, Reusch, Simeon, Perley, Daniel A., Cenko, S. Bradley, Bhalerao, Varun, Kaplan, David L., Sollerman, Jesper, Goobar, Ariel, Copperwheat, Christopher M., Bellm, Eric C., Anupama, G. C., Corsi, Alessandra, Nissanke, Samaya, Agudo, Ivan, Bagdasaryan, Ashot, Barway, Sudhanshu, Belicki, Justin, Bloom, Joshua S., Bolin, Bryce, Buckley, David A. H., Burdge, Kevin B., Burruss, Rick, Caballero-Garc��a, Maria D., Cannella, Chris, Castro-Tirado, Alberto J., Cook, David O., Cooke, Jeff, Cunningham, Virginia, Dahiwale, Aishwarya, Deshmukh, Kunal, Dichiara, Simone, Duev, Dmitry A., Dutta, Anirban, Feeney, Michael, Franckowiak, Anna, Frederick, Sara, Fremling, Christoffer, Gal-Yam, Avishay, Gatkine, Pradip, Ghosh, Shaon, Goldstein, Daniel A., Golkhou, V. Zach, Graham, Matthew J., Graham, Melissa L., Hankins, Matthew J., Helou, George, Hu, Youdong, Ip, Wing-Huen, Jaodand, Amruta, Karambelkar, Viraj, Kong, Albert K. H., Kowalski, Marek, Khandagale, Maitreya, Kulkarni, S. R., Kumar, Brajesh, Laher, Russ R., Li, K. L., Mahabal, Ashish, Masci, Frank J., Miller, Adam A., Mogotsi, Moses, Mohite, Siddharth, Mooley, Kunal, Mroz, Przemek, Newman, Jeffrey A., Ngeow, Chow-Choong, Oates, Samantha R., Patil, Atharva Sunil, Pandey, Shashi B., Pavana, M., Pian, Elena, Riddle, Reed, Sanchez-Ram��rez, Ruben, Sharma, Yashvi, Singh, Avinash, Smith, Roger, Soumagnac, Maayane T., Taggart, Kirsty, Tan, Hanjie, Tzanidakis, Anastasios, Troja, Eleonora, Valeev, Azamat F., Walters, Richard, Waratkar, Gaurav, Webb, Sara, Yu, Po-Chieh, Zhang, Bin-Bin, Zhou, Rongpu, Zolkower, Jeffry |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Popis: |
We present a systematic search for optical counterparts to 13 gravitational wave (GW) triggers involving at least one neutron star during LIGO/Virgo's third observing run. We searched binary neutron star (BNS) and neutron star black hole (NSBH) merger localizations with the Zwicky Transient Facility (ZTF) and undertook follow-up with the Global Relay of Observatories Watching Transients Happen (GROWTH) collaboration. The GW triggers had a median localization of 4480 deg^2, median distance of 267 Mpc and false alarm rates ranging from 1.5 to 1e-25 per yr. The ZTF coverage had a median enclosed probability of 39%, median depth of 20.8mag, and median response time of 1.5 hr. The O3 follow-up by the GROWTH team comprised 340 UVOIR photometric points, 64 OIR spectra, and 3 radio. We find no promising kilonova (radioactivity-powered counterpart) and we convert the upper limits to constrain the underlying kilonova luminosity function. Assuming that all kilonovae are at least as luminous as GW170817 at discovery (-16.1mag), we calculate our joint probability of detecting zero kilonovae is only 4.2%. If we assume that all kilonovae are brighter than -16.6mag (extrapolated peak magnitude of GW170817) and fade at 1 mag/day (similar to GW170817), the joint probability of zero detections is 7%. If we separate the NSBH and BNS populations, the joint probability of zero detections, assuming all kilonovae are brighter than -16.6mag, is 9.7% for NSBH and 7.9% for BNS mergers. Moreover, 1e-4 or phi>30deg to be consistent with our limits. (Abridged)
Submitted to ApJ |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
