BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20260329T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20251026T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260312T173231Z
UID:1764585000@ist.ac.at
DTSTART:20251201T113000
DTEND:20251201T123000
DESCRIPTION:Speaker: Chiara Mingarelli\nhosted by Zoltan Haiman\nAbstract: 
 Pulsar timing arrays have opened a new observational window onto nanohertz
  gravitational waves\, providing evidence for a gravitational wave backgro
 und and motivating the search for the individual supermassive black hole b
 inaries that generate it. In this talk\, I will present the first catalog 
 of electromagnetically informed targeted searches using the NANOGrav 15 ye
 ar data set\, focusing on 114 active galactic nuclei with observed periodi
 city or other indications of binarity. By incorporating source specific in
 formation such as sky position\, distance\, redshift\, and an estimated gr
 avitational wave frequency\, our limits on strain and chirp mass are impro
 ved on average 2.6x compared to all sky analyses. I will describe the meth
 odological framework that enables these gains\, summarize the catalog leve
 l results\, and discuss how these searches connect to population models\, 
 electromagnetic follow-up\, and current measurements of the gravitational 
 wave background. The tests outlined here create a path toward the first de
 tection of an individual supermassive black hole binary with pulsar timing
  arrays.
LOCATION:Raiffeisen Lecture Hall\, ISTA
ORGANIZER:diana.gruber@ista.ac.at
SUMMARY:Chiara Mingarelli: Targeted Searches for Supermassive Black Hole Bi
 naries
URL:https://talks-calendar.ista.ac.at/events/5775
END:VEVENT
END:VCALENDAR