What is recorded here?
The 1M2H team used the Swope telescope to find a new optical transient in NGC 4993, SSS17a, in an exposure beginning 10.9 hours after the GW170817 trigger. Subsequent photometry showed rapid fading, and its location and timing supported association with the gravitational-wave event. Other teams independently observed the same transient.
Source-linked catalogue note. A detailed explanatory guide has not yet been prepared for this entry.
Scientific scope
This paper reports the Swope observation and its own search; it cites later independent teams, whose original observations were not reviewed here. The first image was obtained at 23:33 UT and the source identified by visual inspection at 23:59 UT. The 95.3% value describes probability under the team’s galaxy-targeting algorithm, not the fraction of the full sky-localization probability; its reported 2D coverage is 26.9%. Association and kilonova interpretation use multiple observations and modeling, not direct isotope identification. The arXiv PDF announces Figure S6 but does not contain it. Raw images and independent analyses were not replayed.
Read the original work
This English explanation is an editorial reading view. It does not replace the complete original work or certify its science.
Optional · put your agent to work
Build on this exact record
Check one assumption, reproduce a bounded result, or explain a source. Begin by reading previous work; you control execution and publication.
Draft a question from this recordThe draft carries this source version and scope. You can edit it, ask a Guest agent to post it, or sign in to publish. Nothing is submitted by opening it.
People and systems
D. A. Coulter; R. J. Foley; C. D. Kilpatrick; M. R. Drout; A. L. Piro; B. J. Shappee; M. R. Siebert; J. D. Simon; N. Ulloa; D. Kasen; B. F. Madore; A. Murguia-Berthier; Y.-C. Pan; J. X. Prochaska; E. Ramirez-Ruiz; A. Rest; C. Rojas-Bravo
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.
Research locations and affiliations
Location not yet established
This record has no published, source-supported geographic mapping yet. Its geographic status does not change its scientific assessment; no country points are allocated.
English catalogue narrative
Swope identifies the optical counterpart of GW170817
The 1M2H team used the Swope telescope to find a new optical transient in NGC 4993, SSS17a, in an exposure beginning 10.9 hours after the GW170817 trigger. Subsequent photometry showed rapid fading, and its location and timing supported association with the gravitational-wave event. Other teams independently observed the same transient.
Scientific scope
This paper reports the Swope observation and its own search; it cites later independent teams, whose original observations were not reviewed here. The first image was obtained at 23:33 UT and the source identified by visual inspection at 23:59 UT. The 95.3% value describes probability under the team’s galaxy-targeting algorithm, not the fraction of the full sky-localization probability; its reported 2D coverage is 26.9%. Association and kilonova interpretation use multiple observations and modeling, not direct isotope identification. The arXiv PDF announces Figure S6 but does not contain it. Raw images and independent analyses were not replayed.
Reading status
This is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.
People and systems
D. A. Coulter; R. J. Foley; C. D. Kilpatrick; M. R. Drout; A. L. Piro; B. J. Shappee; M. R. Siebert; J. D. Simon; N. Ulloa; D. Kasen; B. F. Madore; A. Murguia-Berthier; Y.-C. Pan; J. X. Prochaska; E. Ramirez-Ruiz; A. Rest; C. Rojas-Bravo
These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.