A Search for Pulsars around Sgr A
*
in the First Event Horizon Telescope Data Set
Pablo Torne
1
,
2
, Kuo Liu
2
, Ralph P. Eatough
3
,
2
, Jompoj Wongphechauxsorn
2
, James M. Cordes
4
,
Gregory Desvignes
2
,
5
, Mariafelicia De Laurentis
6
,
7
,
8
, Michael Kramer
2
,
9
, Scott M. Ransom
10
, Shami Chatterjee
4
,
Robert Wharton
11
, Ramesh Karuppusamy
2
, Lindy Blackburn
12
,
13
, Michael Janssen
2
, Chi-kwan Chan
14
,
15
,
16
,
Geoffrey, B. Crew
17
, Lynn D. Matthews
17
, Ciriaco Goddi
18
,
19
,
20
,
21
, Helge Rottmann
2
, Jan Wagner
2
,
Salvador Sánchez
1
, Ignacio Ruiz
1
, Federico Abbate
2
, Geoffrey C. Bower
22
,
23
, Juan J. Salamanca
24
,
Arturo I. Gómez-Ruiz
25
,
26
, Alfredo Herrera-Aguilar
27
, Wu Jiang
(
江
悟
)
28
, Ru-Sen Lu
(
路
如
森
)
28
,
29
,
2
,
Ue-Li Pen
30
,
31
,
32
,
33
,
34
, Alexander W. Raymond
12
,
13
, Lijing Shao
35
,
2
, Zhiqiang Shen
(
沈
志强
)
28
,
29
, Gabriel Paubert
1
,
Miguel Sanchez-Portal
1
, Carsten Kramer
36
, Manuel Castillo
1
, Santiago Navarro
1
, David John
1
, Karl-Friedrich Schuster
36
,
Michael D. Johnson
12
,
13
, Kazi L. J. Rygl
37
, Kazunori Akiyama
17
,
38
,
12
, Antxon Alberdi
39
, Walter Alef
2
,
Juan Carlos Algaba
40
, Richard Anantua
12
,
13
,
41
, Keiichi Asada
30
, Rebecca Azulay
42
,
43
,
2
, Uwe Bach
2
,
Anne-Kathrin Baczko
44
,
2
, David Ball
14
, Mislav Balokovi
ć
45
, John Barrett
17
, Michi Bauböck
46
,
Bradford A. Benson
47
,
48
, Dan Bintley
49
,
50
, Raymond Blundell
13
, Katherine L. Bouman
51
, Hope Boyce
52
,
53
,
Michael Bremer
36
, Christiaan D. Brinkerink
54
, Roger Brissenden
12
,
13
, Silke Britzen
2
, Avery E. Broderick
31
,
55
,
56
,
Dominique Broguiere
36
, Thomas Bronzwaer
54
, Sandra Bustamante
57
, Do-Young Byun
58
,
59
,
John E. Carlstrom
60
,
48
,
61
,
62
, Chiara Ceccobello
44
, Andrew Chael
63
, Dominic O. Chang
12
,
13
, Koushik Chatterjee
12
,
13
,
Ming-Tang Chen
22
, Yongjun Chen
(
陈
永
军
)
28
,
29
, Xiaopeng Cheng
58
, Ilje Cho
39
, Pierre Christian
64
,
Nicholas S. Conroy
65
,
13
, John E. Conway
44
, Thomas M. Crawford
48
,
60
, Alejandro Cruz-Osorio
7
, Yuzhu Cui
(
崔
玉
竹
)
66
,
67
, Rohan Dahale
39
, Jordy Davelaar
68
,
69
,
54
, Roger Deane
70
,
71
,
72
, Jessica Dempsey
49
,
50
,
73
,
Jason Dexter
74
, Vedant Dhruv
46
, Sheperd S. Doeleman
12
,
13
, Sean Dougal
14
, Sergio A. Dzib
36
,
2
, Razieh Emami
13
,
Heino Falcke
54
, Joseph Farah
75
,
76
, Vincent L. Fish
17
, Ed Fomalont
10
, H. Alyson Ford
14
, Marianna Foschi
39
,
Raquel Fraga-Encinas
54
, William T. Freeman
77
,
78
, Per Friberg
49
,
50
, Christian M. Fromm
79
,
7
,
2
, Antonio Fuentes
39
,
Peter Galison
12
,
80
,
81
, Charles F. Gammie
46
,
65
,
82
, Roberto García
36
, Olivier Gentaz
36
, Boris Georgiev
55
,
56
,
31
,
Roman Gold
83
, José L. Gómez
39
, Minfeng Gu
(
顾
敏
峰
)
28
,
84
, Mark Gurwell
13
, Kazuhiro Hada
85
,
86
,
Daryl Haggard
52
,
53
, Kari Haworth
13
, Michael H. Hecht
17
, Ronald Hesper
87
, Dirk Heumann
14
, Luis C. Ho
(
何
子
山
)
88
,
35
, Paul Ho
30
,
50
,
49
, Mareki Honma
85
,
86
,
89
, Chih-Wei L. Huang
30
, Lei Huang
(
黄
磊
)
28
,
84
,
David H. Hughes
25
, Shiro Ikeda
38
,
90
,
91
,
92
, C. M. Violette Impellizzeri
93
,
10
, Makoto Inoue
30
, Sara Issaoun
13
,
154
,
David J. James
94
,
95
, Buell T. Jannuzi
14
, Britton Jeter
30
, Alejandra Jiménez-Rosales
54
, Svetlana Jorstad
96
,
Abhishek V. Joshi
46
, Taehyun Jung
58
,
59
, Mansour Karami
31
,
55
, Tomohisa Kawashima
97
, Garrett K. Keating
13
,
Mark Kettenis
98
, Dong-Jin Kim
2
, Jae-Young Kim
99
,
2
, Jongsoo Kim
58
, Junhan Kim
51
, Motoki Kino
38
,
100
,
Jun Yi Koay
30
, Prashant Kocherlakota
7
, Yutaro Kofuji
85
,
89
, Shoko Koyama
101
,
30
, Thomas P. Krichbaum
2
,
Cheng-Yu Kuo
102
,
30
, Noemi La Bella
54
, Tod R. Lauer
103
, Daeyoung Lee
46
, Sang-Sung Lee
58
, Po Kin Leung
104
,
Aviad Levis
51
, Zhiyuan Li
(
李
志
远
)
105
,
106
, Rocco Lico
39
,
107
, Greg Lindahl
13
, Michael Lindqvist
44
,
Mikhail Lisakov
2
, Jun Liu
(
刘
俊
)
2
, Elisabetta Liuzzo
37
, Wen-Ping Lo
30
,
108
, Andrei P. Lobanov
2
,
Laurent Loinard
109
,
110
, Colin J. Lonsdale
17
, Nicholas R. MacDonald
2
, Jirong Mao
(
毛
基
荣
)
111
,
112
,
113
,
Nicola Marchili
37
,
2
, Sera Markoff
114
,
115
, Daniel P. Marrone
14
, Alan P. Marscher
96
, Iván Martí-Vidal
42
,
43
,
Satoki Matsushita
30
, Lia Medeiros
116
,
14
, Karl M. Menten
2
, Daniel Michalik
117
,
48
, Izumi Mizuno
49
,
50
,
Yosuke Mizuno
67
,
118
,
7
, James M. Moran
12
,
13
, Kotaro Moriyama
7
,
17
,
85
, Monika Moscibrodzka
54
, Cornelia Müller
2
,
54
,
Hendrik Müller
2
, Alejandro Mus
42
,
43
, Gibwa Musoke
114
,
54
, Ioannis Myserlis
1
, Andrew Nadolski
65
,
Hiroshi Nagai
38
,
86
, Neil M. Nagar
119
, Masanori Nakamura
120
,
30
, Ramesh Narayan
12
,
13
, Gopal Narayanan
57
,
Iniyan Natarajan
13
,
12
, Antonios Nathanail
121
,
7
, Joey Neilsen
122
, Roberto Neri
36
, Chunchong Ni
55
,
56
,
31
,
Aristeidis Noutsos
2
, Michael A. Nowak
123
, Junghwan Oh
124
, Hiroki Okino
85
,
89
, Héctor Olivares
54
,
Gisela N. Ortiz-León
110
,
2
, Tomoaki Oyama
85
, Feryal Özel
125
, Daniel C. M. Palumbo
12
,
13
,
Georgios Filippos Paraschos
2
, Jongho Park
58
,
30
, Harriet Parsons
49
,
50
, Nimesh Patel
13
, Dominic W. Pesce
13
,
12
,
Vincent Piétu
36
, Richard Plambeck
126
, Aleksandar PopStefanija
57
, Oliver Porth
114
,
7
, Felix M. Pötzl
127
,
2
, Ben Prather
46
,
Jorge A. Preciado-López
31
, Dimitrios Psaltis
125
, Hung-Yi Pu
128
,
129
,
30
, Venkatessh Ramakrishnan
119
,
130
,
131
,
Ramprasad Rao
13
, Mark G. Rawlings
132
,
49
,
50
, Luciano Rezzolla
7
,
133
,
134
, Angelo Ricarte
13
,
12
,
Bart Ripperda
116
,
154
,
135
,
69
, Freek Roelofs
12
,
13
,
54
, Alan Rogers
17
, Eduardo Ros
2
, Cristina Romero-Cañizales
30
,
Arash Roshanineshat
14
, Alan L. Roy
2
, Chet Ruszczyk
17
, David Sánchez-Argüelles
25
,
26
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136
,
85
,
137
,
Kaushik Satapathy
14
, Tuomas Savolainen
138
,
131
,
2
, F. Peter Schloerb
57
, Jonathan Schonfeld
13
, Des Small
98
,
Bong Won Sohn
58
,
59
,
139
, Jason SooHoo
17
, Kamal Souccar
57
, He Sun
(
孙
赫
)
51
, Alexandra J. Tetarenko
140
,
Paul Tiede
13
,
12
, Remo P. J. Tilanus
14
,
54
,
93
,
141
, Michael Titus
17
, Teresa Toscano
39
, Efthalia Traianou
39
,
2
,
Tyler Trent
14
, Sascha Trippe
142
, Matthew Turk
65
, Ilse van Bemmel
98
, Huib Jan van Langevelde
93
,
98
,
143
,
Daniel R. van Rossum
54
, Jesse Vos
54
, Derek Ward-Thompson
144
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145
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12
,
13
,
The Astrophysical Journal,
959:14
(
27pp
)
, 2023 December 10
https:
//
doi.org
/
10.3847
/
1538-4357
/
acf4f2
© 2023. The Author
(
s
)
. Published by the American Astronomical Society.
1
Norbert Wex
2
, Maciek Wielgus
2
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146
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2
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54
,
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(
吴
庆
文
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, Doosoo Yoon
114
,
André Young
54
, Ken Young
13
, Ziri Younsi
150
,
7
, Wei Yu
(
于
威
)
13
, Feng Yuan
(
袁
峰
)
28
,
84
,
151
, Ye-Fei Yuan
(
袁
业
飞
)
152
, J. Anton Zensus
2
, Shuo Zhang
153
, Guang-Yao Zhao
39
, and Shan-Shan Zhao
(
赵
杉杉
)
28
1
Institut de Radioastronomie Millimétrique, Avenida Divina Pastora 7, Local 20, E-18012, Granada, Spain;
torne@iram.es
2
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany;
kliu@mpifr-bonn.mpg.de
3
National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100101, People
ʼ
s Republic of China
4
Cornell Center for Astrophysics and Planetary Science, Cornell University, Ithaca, NY 14853, USA
5
LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, 5 place Jules Janssen, F-92195 Meudon, France
6
Dipartimento di Fisica
“
E. Pancini,
”
Università di Napoli
“
Federico II,
”
Compl. Univ. di Monte S. Angelo, Edi
fi
cio G, Via Cinthia, I-80126, Napoli, Italy
7
Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt am Main, Germany
8
INFN Sez. di Napoli, Compl. Univ. di Monte S. Angelo, Edi
fi
cio G, Via Cinthia, I-80126, Napoli, Italy
9
Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UK
10
National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA
11
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
12
Black Hole Initiative at Harvard University, 20 Garden Street, Cambridge, MA 02138, USA
13
Center for Astrophysics
|
Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USA
14
Steward Observatory and Department of Astronomy, University of Arizona, 933 N. Cherry Avenue, Tucson, AZ 85721, USA
15
Data Science Institute, University of Arizona, 1230 N. Cherry Avenue, Tucson, AZ 85721, USA
16
Program in Applied Mathematics, University of Arizona, 617 N. Santa Rita, Tucson, AZ 85721, USA
17
Massachusetts Institute of Technology Haystack Observatory, 99 Millstone Road, Westford, MA 01886, USA
18
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, R. do Matão, 1226, São Paulo, SP 05508-090, Brazil
19
Dipartimento di Fisica, Università degli Studi di Cagliari, SP Monserrato-Sestu km 0.7, I-09042 Monserrato
(
CA
)
, Italy
20
INAF
—
Osservatorio Astronomico di Cagliari, via della Scienza 5, I-09047 Selargius
(
CA
)
, Italy
21
INFN, sezione di Cagliari, I-09042 Monserrato
(
CA
)
, Italy
22
Institute of Astronomy and Astrophysics, Academia Sinica, 645 N. A
’
ohoku Place, Hilo, HI 96720, USA
23
Department of Physics and Astronomy, University of Hawaii at Manoa, 2505 Correa Road, Honolulu, HI 96822, USA
24
Departamento de Estadística e I.O., Escuela Politécnica de Ingeniería, Universidad de Oviedo, E-33071 Gijón, Spain
25
Instituto Nacional de Astrofísica, Óptica y Electrónica. Apartado Postal 51 y 216, 72000. Puebla Pue., México
26
Consejo Nacional de Ciencia y Tecnologìa, Av. Insurgentes Sur 1582, 03940, Ciudad de México, México
27
Instituto de Física, Benemérita Universidad Autónoma de Puebla, Edi
fi
cio IF-1, Ciudad Universitaria, CP 72570, Puebla, México
28
Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People
ʼ
s Republic of China
29
Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, People
ʼ
s Republic of China
30
Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, AS
/
NTU No. 1, Sec. 4, Roosevelt Road, Taipei 10617,
Taiwan, R.O.C.
31
Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, ON N2L 2Y5, Canada
32
Canadian Institute for Theoretical Astrophysics, University of Toronto, 60 St. George Street, Toronto, ON M5S 3H8, Canada
33
Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4, Canada
34
Canadian Institute for Advanced Research, 180 Dundas Street West, Toronto, ON M5G 1Z8, Canada
35
Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, People
ʼ
s Republic of China
36
Institut de Radioastronomie Millimétrique, 300 rue de la Piscine, F-38406 Saint Martin d
’
Hères, France
37
INAF-Istituto di Radioastronomia & Italian ALMA Regional Centre, Via P. Gobetti 101, I-40129 Bologna, Italy
38
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
39
Instituto de Astrofísica de Andalucía-CSIC, Glorieta de la Astronomía s
/
n, E-18008 Granada, Spain
40
Department of Physics, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
41
Department of Physics & Astronomy, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
42
Departament d
’
Astronomia i Astrofísica, Universitat de València, C. Dr. Moliner 50, E-46100 Burjassot, València, Spain
43
Observatori Astronòmic, Universitat de València, C. Catedrático José Beltrán 2, E-46980 Paterna, València, Spain
44
Department of Space, Earth and Environment, Chalmers University of Technology, Onsala Space Observatory, SE-43992 Onsala, Sweden
45
Yale Center for Astronomy & Astrophysics, Yale University, 52 Hillhouse Avenue, New Haven, CT 06511, USA
46
Department of Physics, University of Illinois, 1110 W. Green Street, Urbana, IL 61801, USA
47
Fermi National Accelerator Laboratory, MS209, P.O. Box 500, Batavia, IL 60510, USA
48
Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
49
East Asian Observatory, 660 N. A
’
ohoku Place, Hilo, HI 96720, USA
50
James Clerk Maxwell Telescope
(
JCMT
)
, 660 N. A
’
ohoku Place, Hilo, HI 96720, USA
51
California Institute of Technology, 1200 E. California Boulevard, Pasadena, CA 91125, USA
52
Department of Physics, McGill University, 3600 rue University, Montréal, QC H3A 2T8, Canada
53
Trottier Space Institute at McGill, 3550 rue University, Montréal, QC H3A 2A7, Canada
54
Department of Astrophysics, Institute for Mathematics, Astrophysics and Particle Physics
(
IMAPP
)
, Radboud University, P.O. Box 9010, 6500 GL Nijmegen, The
Netherlands
55
Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
56
Waterloo Centre for Astrophysics, University of Waterloo, Waterloo, ON N2L 3G1, Canada
57
Department of Astronomy, University of Massachusetts, Amherst, MA 01003, USA
58
Korea Astronomy and Space Science Institute, Daedeok-daero 776, Yuseong-gu, Daejeon 34055, Republic of Korea
59
University of Science and Technology, Gajeong-ro 217, Yuseong-gu, Daejeon 34113, Republic of Korea
60
Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
61
Department of Physics, University of Chicago, 5720 S. Ellis Avenue, Chicago, IL 60637, USA
62
Enrico Fermi Institute, University of Chicago, 5640 S. Ellis Avenue, Chicago, IL 60637, USA
63
Princeton Gravity Initiative, Jadwin Hall, Princeton University, Princeton, NJ 08544, USA
64
Physics Department, Fair
fi
eld University, 1073 N. Benson Road, Fair
fi
eld, CT 06824, USA
65
Department of Astronomy, University of Illinois at Urbana-Champaign, 1002 W. Green Street, Urbana, IL 61801, USA
66
Research Center for Intelligent Computing Platforms, Zhejiang Laboratory, Hangzhou 311100, People
ʼ
s Republic of China
67
Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shengrong Road 520, Shanghai, 201210, People
ʼ
s Republic of China
68
Department of Astronomy and Columbia Astrophysics Laboratory, Columbia University, 550 W. 120th Street, New York, NY 10027, USA
69
Center for Computational Astrophysics, Flatiron Institute, 162 Fifth Avenue, New York, NY 10010, USA
2
The Astrophysical Journal,
959:14
(
27pp
)
, 2023 December 10
Torne et al.