Mass estimates from optical modelling of the new TRAPUM redback PSR J1910-5320

被引：6

作者：

Dodge, O. G. ^{[1
]}

Breton, R. P. ^{[1
]}

Clark, C. J. ^{[2
,3
]}

Burgay, M. ^{[4
]}

Strader, J. ^{[5
]}

Au, K. -y ^{[6
]}

Barr, E. D. ^{[7
]}

Buchner, S. ^{[8
]}

Dhillon, V. S. ^{[9
,10
]}

Ferrara, E. C. ^{[11
,12
,13
]}

Freire, P. C. C. ^{[7
]}

Griessmeier, J. -m ^{[14
,15
]}

Kennedy, M. R. ^{[1
,16
]}

Kramer, M. ^{[1
,7
]}

Li, K. -l

Padmanabh, P., V ^{[2
,3
,7
]}

Phosrisom, A. ^{[1
]}

Stappers, B. W. ^{[1
]}

Swihart, S. J. ^{[17
]}

Thongmeearkom, T. ^{[1
,18
]}

机构：

[1] Univ Manchester, Jodrell Bank Ctr Astrophys, Alan Turing Bldg, Manchester M13 9PL, England

[2] Albert Einstein Inst, Max Planck Inst Grav Phys, D-30167 Hannover, Germany

[3] Leibniz Univ Hannover, D-30167 Hannover, Germany

[4] INAF Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy

[5] Michigan State Univ, Ctr Data Intens & Time Domain Astron, Dept Phys & Astron, E Lansing, MI 48824 USA

[6] Natl Cheng Kung Univ, Dept Phys, 1 Univ Rd, Tainan 70101, Taiwan

[7] Max Planck Inst Radioastron, D-53121 Bonn, Germany

[8] South African Radio Astron Observ, 2 Fir St, ZA-7925 Cape Town, South Africa

[9] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, England

[10] Inst Astrofis Canarias, E-38205 San Cristobal la Laguna, Spain

[11] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[12] NASA, GSFC, Ctr Res & Explorat Space Sci & Technol II CRESST I, Greenbelt, MD 20771 USA

[13] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[14] Univ Orleans, CNRS, LPC2E, F-45071 Orleans 2, France

[15] Univ Orleans, Univ PSL, CNRS, Observ Paris,Observ Radioastron Nancay ORN, F-18330 Nancay, France

[16] Univ Coll Cork, Sch Phys, Kane Bldg, Cork T12K8AF, Ireland

[17] Inst Def Anal, 730 E Glebe Rd, Alexandria, VA 22305 USA

[18] Natl Astron Res Inst Thailand Don Kaeo, Mae Rim 50180, Chiang Mai, Thailand

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2024年 / 528卷 / 03期

基金：

欧洲研究理事会; 英国科学技术设施理事会;

关键词：

pulsars: general; pulsars: individual: J1910-5320; techniques: photometric; techniques: radial velocities; BLACK-WIDOW PULSAR; MILLISECOND PULSAR; NEUTRON-STAR; MULTIWAVELENGTH OBSERVATIONS; BINARY; COMPANION; DISCOVERY; DEMOGRAPHICS; PHOTOMETRY; EFFICIENT;

D O I：

10.1093/mnras/stae211

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Spider pulsars continue to provide promising candidates for neutron star mass measurements. Here we present the discovery of PSR J1910-5320, a new millisecond pulsar discovered in a MeerKAT observation of an unidentified Fermi-LAT gamma-ray source. This pulsar is coincident with a recently identified candidate redback binary, independently discovered through its periodic optical flux and radial velocity. New multicolour optical light curves obtained with ULTRACAM/New Technology Telescope in combination with MeerKAT timing and updated SOAR/Goodman spectroscopic radial velocity measurements allow a mass constraint for PSR J1910-5320. ICARUS optical light curve modelling, with streamlined radial velocity fitting, constrains the orbital inclination and companion velocity, unlocking the binary mass function given the precise radio ephemeris. Our modelling aims to unite the photometric and spectroscopic measurements available by fitting each simultaneously to the same underlying physical model, ensuring self-consistency. This targets centre-of-light radial velocity corrections necessitated by the irradiation endemic to spider systems. Depending on the gravity darkening prescription used, we find a moderate neutron star mass of either 1.6 +/- 0.2 or 1.4 +/- 0.2 M-circle dot. The companion mass of either 0.45 +/- 0.04 or 0.43(-0.03)(+0.04)M(circle dot) also further confirms PSR J1910-5320 as an irradiated redback spider pulsar.

引用

页码：4337 / 4353

页数：17

共 2 条

[1] DISCOVERY OF PSR J1227-4853: A TRANSITION FROM A LOW-MASS X-RAY BINARY TO A REDBACK MILLISECOND PULSAR
Roy, Jayanta
Ray, Paul S.
Bhattacharyya, Bhaswati
Stappers, Ben
Chengalur, Jayaram N.
Deneva, Julia
Camilo, Fernando
Johnson, Tyrel J.
Wolff, Michael
Hessels, Jason W. T.
Bassa, Cees G.
Keane, Evan F.
Ferrara, Elizabeth C.
Harding, Alice K.
Wood, Kent S.
ASTROPHYSICAL JOURNAL LETTERS, 2015, 800 (01)
[2] NEW EXTINCTION AND MASS ESTIMATES FROM OPTICAL PHOTOMETRY OF THE VERY LOW MASS BROWN DWARF COMPANION CT CHAMAELEONTIS B WITH THE MAGELLAN AO SYSTEM
Wu, Ya-Lin
Close, Laird M.
Males, Jared R.
Barman, Travis S.
Morzinski, Katie M.
Follette, Katherine B.
Bailey, Vanessa
Rodigas, Timothy J.
Hinz, Philip
Puglisi, Alfio
Xompero, Marco
Briguglio, Runa
ASTROPHYSICAL JOURNAL, 2015, 801 (01):

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