September 16, 2025
<sid.inpe.br/mtc-m21d/2022/07.25.16.45>
(repository)

Journal Article
An Isolated Stellar-mass Black Hole Detected through Astrometric Microlensing*
Sahu, Kailash C. & Anderson, Jay & Casertano, Stefano & Bond, Howard E. & Udalski, Andrzej & Dominik, Martin & Calamida, Annalisa & Bellini, Andrea & Brown, Thomas M. & Rejkuba, Marina & Bajaj, Varun & Kains, Noe & Ferguson, Henry C. & Fryer, Chris L. & Yock, Philip & Mroz, Przemek & Kozlowski, Szymon & Pietrukowicz, Pawel & Poleski, Radek & Skowron, Jan & Soszynski, Igor & Szymanski, Michal K. & Ulaczyk, Krzysztof & Wyrzykowski, Lukasz & Barry, Richard K. & Bennett, David P. & Bond, Ian A. & Hirao, Yuki & Silva, Stela Ishitani & Kondo, Iona & Koshimoto, Naoki & Ranc, Clement & Rattenbury, Nicholas J. & Sumi, Takahiro & Suzuki, Daisuke & Tristram, Paul J. & Vandorou, Aikaterini & Beaulieu, Philippe & Marquette, Jean-Baptiste & Cole, Andrew & Fouque, Pascal & Hill, Kym & Dieters, Stefan & Coutures, Christian & Dominis-Prester, Dijana & Bennett, Clara & Bachelet, Etienne & Menzies, John & Albrow, Michael & Pollard, Karen & Gould, Andrew & Yee, Jennifer C. & Allen, William & Almeida, Leonardo A. & Christie, Grant & Drummond, John & Gal-Yam, Avishay & Gorbikov, Evgeny & Jablonski, Francisco José & Lee, Chung-Uk & Maoz, Dan & Manulis, Ilan & McCormick, Jennie & Natusch, Tim & Pogge, Richard W. & Shvartzvald, Yossi & Jorgensen, Uffe G. & Alsubai, Khalid A. & Andersen & I & Michael & Bozza, Valerio & Novati, Sebastiano Calchi & Burgdorf, Martin & Hinse, Tobias C. & Hundertmark, Markus & Husser, Tim-Oliver & Kerins, Eamonn & Longa-Pena, Penelope & Mancini, Luigi & Penny, Matthew & Rahvar, Sohrab & Ricci, Davide & Sajadian, Sedighe & Skottfelt, Jesper & Snodgrass, Colin & Southworth, John & Tregloan-Reed, Jeremy & Wambsganss, Joachim & Wertz, Olivier & Tsapras, Yiannis & Street, Rachel A. & Bramich, D. M. & Horne, Keith & Steele, Iain A. :2022:
(metadata from site <mtc-m21d.sid.inpe.br 808>)

The number of visits¹ since August 14, 2022 is 145.

Average number of visits per day over 10 periods of 113 days

0.04 0.03 0.03 0.15 0.07 0.33 0.35 0.02 0.03 0.25   1       2      3      4      5      6      7      8      9       10

The height of the purple bar is proportional to the average number of visits per day
within the corresponding period.
Period 1 begins on August 14, 2022 ( ), and Period 10 ends on September 16, 2025 ( ).
The number of visits over the 10 periods is 145.
The average number of visits per day over the 10 periods is 0.13.
¹Before May 17, 2015, all each user visits (IP) were added, thereafter, only one visit per day for each user (IP) is added.