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The Astrophysical Journal Letters (ApJL)

Resumen/Descripción – provisto por la editorial en inglés
The Astrophysical Journal Letters is an open access express scientific journal that allows astrophysicists to rapidly publish short notices of significant original research. ApJL articles are timely, high-impact, and broadly understandable.
Palabras clave – provistas por la editorial

astronomy; astrophysics

Disponibilidad
Institución detectada Período Navegá Descargá Solicitá
No detectada desde ene. 2010 / hasta dic. 2023 IOPScience

Información

Tipo de recurso:

revistas

ISSN impreso

2041-8205

ISSN electrónico

2041-8213

Editor responsable

American Astronomical Society (AAS)

Idiomas de la publicación

  • inglés

País de edición

Reino Unido

Información sobre licencias CC

https://creativecommons.org/licenses/by/4.0/

Cobertura temática

Tabla de contenidos

NICER Detection of Thermal X-Ray Pulsations from the Massive Millisecond Pulsars PSR J0740+6620 and PSR J1614–2230

Michael T. WolffORCID; Sebastien GuillotORCID; Slavko BogdanovORCID; Paul S. RayORCID; Matthew KerrORCID; Zaven Arzoumanian; Keith C. GendreauORCID; M. Coleman MillerORCID; Alexander J. DittmannORCID; Wynn C. G. HoORCID; Lucas GuillemotORCID; Ismael CognardORCID; Gilles Theureau; Kent S. Wood

<jats:title>Abstract</jats:title> <jats:p>We report the detection of X-ray pulsations from the rotation-powered millisecond-period pulsars PSR J0740+6620 and PSR J1614−2230, two of the most massive neutron stars known, using observations with the Neutron Star Interior Composition Explorer (NICER). We also analyze X-ray Multi-Mirror Mission (XMM-Newton) data for both pulsars to obtain their time-averaged fluxes and study their respective X-ray fields. PSR J0740+6620 exhibits a broad double-peaked profile with a separation of ∼0.4 in phase. PSR J1614−2230, on the other hand, has a broad single-peak profile. We show the NICER detections of X-ray pulsations for both pulsars and also discuss the phase relationship to their radio pulsations. The XMM-Newton X-ray spectra of both pulsars shows they are thermally dominated but in the case of PSR J1614−2230 a weak nonthermal high energy tail appears to be present in the spectrum. The thermally dominated spectra along with broad modulations for both pulsars are indicative of thermal radiation from one or more small regions of the stellar surface. For PSR J0740+6620, this paper documents the data reduction performed to obtain the pulsation detection and prepare for pulse light curve modeling analysis.</jats:p>

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L26

A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy

Thomas E. RileyORCID; Anna L. WattsORCID; Paul S. RayORCID; Slavko BogdanovORCID; Sebastien GuillotORCID; Sharon M. MorsinkORCID; Anna V. BilousORCID; Zaven Arzoumanian; Devarshi ChoudhuryORCID; Julia S. DenevaORCID; Keith C. GendreauORCID; Alice K. HardingORCID; Wynn C. G. HoORCID; James M. LattimerORCID; Michael Loewenstein; Renee M. LudlamORCID; Craig B. MarkwardtORCID; Takashi OkajimaORCID; Chanda Prescod-WeinsteinORCID; Ronald A. RemillardORCID; Michael T. WolffORCID; Emmanuel FonsecaORCID; H. Thankful CromartieORCID; Matthew KerrORCID; Timothy T. PennucciORCID; Aditya ParthasarathyORCID; Scott RansomORCID; Ingrid StairsORCID; Lucas GuillemotORCID; Ismael CognardORCID

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L27

The Radius of PSR J0740+6620 from NICER and XMM-Newton Data

M. C. MillerORCID; F. K. LambORCID; A. J. DittmannORCID; S. BogdanovORCID; Z. Arzoumanian; K. C. GendreauORCID; S. GuillotORCID; W. C. G. HoORCID; J. M. LattimerORCID; M. LoewensteinORCID; S. M. MorsinkORCID; P. S. RayORCID; M. T. WolffORCID; C. L. Baker; T. Cazeau; S. Manthripragada; C. B. MarkwardtORCID; T. OkajimaORCID; S. Pollard; I. CognardORCID; H. T. CromartieORCID; E. FonsecaORCID; L. GuillemotORCID; M. KerrORCID; A. ParthasarathyORCID; T. T. PennucciORCID; S. RansomORCID; I. StairsORCID

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L28

Constraints on the Dense Matter Equation of State and Neutron Star Properties from NICER’s Mass–Radius Estimate of PSR J0740+6620 and Multimessenger Observations

G. RaaijmakersORCID; S. K. GreifORCID; K. HebelerORCID; T. HindererORCID; S. NissankeORCID; A. SchwenkORCID; T. E. RileyORCID; A. L. WattsORCID; J. M. LattimerORCID; W. C. G. HoORCID

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L29

Universal Relation between the Variances of Distortions of Gravitational Waves owing to Gravitational Lensing

Makoto InamoriORCID; Teruaki Suyama

<jats:title>Abstract</jats:title> <jats:p>Gravitational waves from the distant sources are gravitationally lensed during their propagation through the intervening matter inhomogeneities before arriving at detectors. It has been proposed in the literature that the variance of the lensed waveform can be used to extract information of the matter power spectrum at very small scales and of low-mass dark halos. In this Letter, we show that the variance of the amplitude fluctuation and that of the phase fluctuation of the lensed waveform obey a simple relation irrespective of the shape of the matter power spectrum. We study conditions under which this relation can be violated and discuss some potential applications of the relation. This relation may be used to confirm the robustness of claimed observations of gravitational lensing of gravitational waves and the subsequent reconstruction of the matter power spectrum.</jats:p>

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L30

Remnant Black Hole Kicks and Implications for Hierarchical Mergers

Parthapratim MahapatraORCID; Anuradha GuptaORCID; Marc FavataORCID; K. G. ArunORCID; B. S. SathyaprakashORCID

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L31

A New Set of Chisels for Galactic Archeology: Sc, V, and Zn as Taggers of Accreted Globular Clusters*

A. MinelliORCID; A. MucciarelliORCID; D. MassariORCID; M. BellazziniORCID; D. RomanoORCID; F. R. FerraroORCID

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L32

The Remnant and Origin of the Historical Supernova 1181 AD

Andreas RitterORCID; Quentin A. ParkerORCID; Foteini LykouORCID; Albert A. ZijlstraORCID; Martín A. GuerreroORCID; Pascal Le DûORCID

<jats:title>Abstract</jats:title> <jats:p>The guest star of AD 1181 is the only historical supernova of the past millennium that is without a definite counterpart. The previously proposed association with supernova remnant G130.7+3.1 (3C 58) is in strong doubt because of the inferred age of this remnant. Here we report a new identification of SN 1181 with our codiscovery of the hottest known Wolf–Rayet star of the oxygen sequence (IRAS 00500+6713 or 2MASS J00531123+6730023, here named by us as “Parker's star”) and its surrounding nebula Pa 30. Our spectroscopy of the nebula shows a fast shock with extreme velocities of ≈1100 km s<jats:sup>−1</jats:sup>. The derived expansion age of the nebula implies an explosive event ≈1000 yr ago that agrees with the 1181 event. The on-sky location also fits the historical Chinese and Japanese reports of SN 1181 to within 3.°5. Pa 30 and Parker’s star have previously been proposed to be the result of a double-degenerate merger, leading to a rare Type Iax supernova. The likely historical magnitude and the distance suggest the event was subluminous for normal supernova. This agrees with the proposed Type Iax association that would also be only the second of its kind in the Galaxy. Taken together, the age, location, event magnitude, and duration elevate Pa 30 to prime position as the counterpart of SN 1181. This source is the only Type Iax supernova where detailed studies of the remnant star and nebula are possible. It provides strong observational support for the double-degenerate merger scenario for Type Iax supernovae.</jats:p>

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L33

GRB 200716C: Evidence for a Short Burst Being Lensed

Yun WangORCID; Lu-Yao Jiang; Cheng-Kui LiORCID; Jia Ren; Shao-Peng TangORCID; Zi-Min Zhou; Yun-Feng Liang; Yi-Zhong FanORCID

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L34

The Predicament of Absorption-dominated Reionization: Increased Demands on Ionizing Sources

Frederick B. DaviesORCID; Sarah E. I. BosmanORCID; Steven R. FurlanettoORCID; George D. BeckerORCID; Anson D’Aloisio

Palabras clave: Space and Planetary Science; Astronomy and Astrophysics.

Pp. L35