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SAGUARO: Time-domain Infrastructure for the Fourth Gravitational-wave Observing Run and Beyond

  • Authors: Griffin Hosseinzadeh, Kerry Paterson, Jillian C. Rastinejad, Manisha Shrestha, Philip N. Daly, Michael J. Lundquist, David J. Sand, Wen-fai Fong, K. Azalee Bostroem, Saarah Hall, Samuel D. Wyatt, Alex R. Gibbs, Eric Christensen, William Lindstrom, Jonathan Nation, Joseph Chatelain, Curtis McCully

Griffin Hosseinzadeh et al 2024 The Astrophysical Journal 964 .

  • Provider: AAS Journals

Caption: Figure 6.

Two tabs of the target detail page for AT 2023ixg, which was suggested as a possible EM counterpart to GW event S230518h by Johnston et al. (2023). The teal “Vet” button near the top left of the page runs our kilonova vetting code. The results are displayed in the “Catalog Crossmatching” section at the center left of the page, which indicates no point-source matches but several galaxy matches in this case. The “Photometry” tab shows a plot of all known photometric detections and upper limits for this target, including public data from the ATLAS forced photometry server (obtained by pressing the teal “Get ATLAS phot.” button), the Transient Name Server, and the Zwicky Transient Facility. Because this target has been linked with GW candidate S230518h (note the chain icon under the target names), the time of merger of that event is indicated by a vertical line on the photometry plot. The “Host Galaxies” tab (inset) shows a table of potential host galaxies, ordered by increasing probability of chance coincidence (P cc). These are also marked on the Aladin viewer at the bottom left of the page.

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