{
  "bibcode": "2019GCN.25423....1R",
  "body": "��smar Rodr��guez (UNAB), Nicol��s Meza-Retamal (ESO Chile), Jonathan Quirola\n(PUC), Felipe Olivares (INCT/UDA), Regis Cartier (NOAO/CTIO), Douglas\nTucker (Fermilab), Marcelle Soares-Santos (Brandeis U), Clara\nMartinez-Vazquez (NOAO/CTIO), Alyssa Garcia (Brandeis U), Ken Herner\n(Fermilab), James Annis (Fermilab), Antonella Palmese (Fermilab), Nora\nSherman (Fermilab and Brandeis U), Robert Morgan (U of Wisconsin-Madison),\nTristan Bachmann (U Chicago), Tamara Davis (U Queensland)\n\n\n\nOn behalf of the DESGW team*:\n\n\n\nWe report SOAR Goodman spectroscopy of AT2019noq and AT2019ntn, possible\ncounterparts to the black hole-neutron star merger S190814bv  reported by\nthe LVC in GCN Circulars No. 25324 and 25333. The candidates were found by\nthe Pan-STARRS1 telescope (GCN Circular No. 25356), by the DECam-Growth\nteam on CTIO Blanco DECam data (GCN Circular No. 25393), and independently\nin  the DESGW analysis of the DECam data, respectively.\n\n\n\nWe obtained 1800 and 900 sec exposures of AT2019noq and AT2019ntn,\nrespectively, using the Goodman instrument on the 4.1m SOAR telescope at\nCerro Pach��n. The SNID classifier analysis of these spectra allows us to\nconclude that:\n\n\n\nAT2019noq (PS19epf) is consistent with a Type IIP SN at a redshift of 0.07\na few days after peak.\n\n\n\nAT2019ntn (DG19rtekc) is consistent with both a Type Ia-CSM SN and a Type\nIIn SN at z=0.1.\n\n\n\nThe SOAR followup program is a partnership between the US (PIs: Tucker &\nKilpatrick), Chilean (PI: Olivares), and Brazilian (PI: Makler) community.\nThe optical counterpart was identified by the DECam Search & Discovery\nProgram for Optical Signatures of Gravitational Wave Events (DESGW, PI:\nSoares-Santos), which is carried out by the Dark Energy Survey (DES)\ncollaboration in partnership with wide ranging groups in the community.\nDESGW uses data obtained with the Dark Energy Camera (DECam), which was\nconstructed by the DES collaboration with support from the Department of\nEnergy and member institutions, and utilizes data as distributed by the\nScience Data Archive at NOAO. NOAO is operated by the Association of\nUniversities for Research in Astronomy (AURA) under a cooperative agreement\nwith the National Science Foundation.\n\n\n\nBased on observations obtained at the Southern Astrophysical Research\n(SOAR) telescope, which is a joint project of the Ministerio da Ciencia,\nTecnologia, Inovacoes e Comunicacoes do Brasil (MCTIC/LNA), the U.S.\nNational Science Foundation's National Optical Astronomy Observatory\n(NOAO), the University of North Carolina at Chapel Hill (UNC), and Michigan\nState University (MSU).\n\n\n\n*The DESGW Collaboration:\n\n\n\nSahar Allam (Fermilab), James Annis (Fermilab), Iair Arcavi (Tel Aviv U),\nTristan Bachmann (U Chicago), Paulo Barchi (INPE & Brandeis U), Thomas\nBeatty (U of Arizona) Keith Bechtol (U of Wisconsin-Madison), Federico\nBerlfein (Brandeis U), Antonio Bernardo (U of Sao Paulo), Dillon Brout (U\nPenn), Robert Butler (Indiana U), Melissa Butner, (Fermilab), Annalisa\nCalamida (STScI), Hsin-Yu Chen (Harvard U), Chris Conselice (U of\nNottingham), Carlos Contreras (STScI), Jeff Cooke (Swinburne U), Chris\nD��������Andrea (U Penn), Tamara Davis (U Queensland), Reinaldo de Carvalho\n(UNICSUL), H. Thomas Diehl (Fermilab), Zoheyr Doctor (U Chicago), Alex\nDrlica-Wagner (Fermilab), Maria Drout (U Toronto), Maya Fishbach (U\nChicago), Francisco Forster (U de Chile), Ryan Foley (UCSC), Joshua Frieman\n(Fermilab & U Chicago), Chris Frohmaier (U of Portsmouth), Ori Fox (STScI),\nAlyssa Garcia (Brandeis U), Juan Garcia-Bellido (U Autonoma de Madrid),\nMandeep Gill (SLAC & Stanford U), Robert Gruendl (NCSA), Will Hartley (U\nCollege London), Kenneth Herner (Fermilab), Daniel Holz (U Chicago), Jorge\nHorvath (U of Sao Paulo), D. Andrew Howell (Las Cumbres Observatory),\nRichard Kessler (U Chicago), Charles Kilpatrick (UCSC), Nikolay Kuropatkin\n(Fermilab), Ofer Lahav (U College London), Huan Lin (Fermilab), Andrew\nLundgren (U of Portsmouth), Martin Makler (CBPF), Clara Martinez-Vazquez\n(CTIO/NOAO), Curtis McCully (Las Cumbres Observatory), Mitch McNanna (U of\nWisconsin-Madison), Robert Morgan (U of Wisconsin-Madison), Gautham Narayan\n(STScI), Eric Neilsen (Fermilab), Robert Nichol (U of Portsmouth),\nAntonella Palmese (Fermilab), Francisco Paz-Chinchon (NCSA & UIUC), Matthew\nPenny (OSU), Maria Pereira (Brandeis U), Sandro Rembold (UFSM), Armin Rest\n(STScI & JHU), Livia Rocha (U Sao Paulo), Russell Ryan (STScI), Masao Sako\n(U Penn), Samir Salim (Indiana U), David Sand (U of Arizona), Luidhy\nSantana-Silva (Valongo Observatory), Daniel Scolnic (Duke U), Nora Sherman\n(Fermilab), J. Allyn Smith (Austin Peay State U), Mathew Smith (U of\nSouthampton), Marcelle Soares-Santos (Brandeis U), Lou Strolger (STScI),\nRiccardo Sturani (UFRN), Mark Sullivan (U of Southampton), Masaomi Tanaka\n(NAOJ), Nozomu Tominaga (Konan U), Douglas Tucker (Fermilab), Yousuke\nUtsumi (Stanford U), Stefano Valenti (UC Davis), Kathy Vivas (NOAO/CTIO),\nAlistair Walker (NOAO/CTIO), Sara Webb (Swinburne U), Matt Wiesner\n(Benedictine U), Brian Yanny (Fermilab), Michitoshi Yoshida (NAOJ), Alfredo\nZenteno (NOAO/CTIO).",
  "circularId": 25423,
  "createdOn": 1566377188000,
  "email": "felipe204@gmail.com",
  "subject": "LIGO/Virgo S190814bv: SOAR spectroscopy of AT2019noq and AT2019ntn",
  "submitter": "Felipe Olivares Estay at MPE  <felipe204@gmail.com>",
  "eventId": "LIGO/Virgo S190814bv"
}