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Based on recent Hubble Space Telescope (HST) observations in far-UV and groundbased observations in optical bands, Pavlov and colleagues have revealed a thermal component in the spectrum of the old pulsar B0950+08 (spin-down age 17.5 Myr)…

High Energy Astrophysical Phenomena · Physics 2022-01-26 Vadim Abramkin , George G. Pavlov , Yuriy Shibanov , Oleg Kargaltsev

We present results of optical-UV observations of the 200 Myr old rotation-powered radio pulsar J0108$-$1431 with the Hubble Space Telescope. We found a putative candidate for the far-UV (FUV) pulsar counterpart, with the flux density $f_\nu…

High Energy Astrophysical Phenomena · Physics 2021-04-14 Vadim Abramkin , Yuriy Shibanov , Roberto P. Mignani , George G. Pavlov

We present the timing and spectral analyses of theXMM-newton data on the 17-Myr-old, nearby radio pulsar B0950+08. This observation revealed pulsations of the X-ray flux of the pulsar at its radio period. The pulse shape and pulsed fraction…

Astrophysics · Physics 2009-11-10 V. E. Zavlin , G. G. Pavlov

We report on detection of the double pulsar system J0737-3039 in the far-UV with the ACS/SBC detector aboard HST. We measured the energy flux F = 4.5+/-1.0e-17 erg cm-2s-1 in the 1250-1550 AA band, which corresponds to the…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Martin Durant , Oleg Kargaltsev , George G Pavlov

We present the results of the broad-band photometry of the nearby middle-aged radio pulsar PSR B0656+14 and its neighborhood obtained with the 6-meter telescope of the SAO RAS and with the Hubble Space Telescope. The broad-band spectral…

We observed a nearby millisecond pulsar J2124-3358 with the Hubble Space Telescope in broad far-UV (FUV) and optical filters. The pulsar is detected in both bands with fluxes F(1250-2000 A)= (2.5+/-0.3)x10^-16 erg/s/cm^2 and F(3800-6000…

High Energy Astrophysical Phenomena · Physics 2017-02-08 B. Rangelov , G. G. Pavlov , O. Kargaltsev , A. Reisenegger , S. Guillot , M. van Kerkwijk , C. Reyes

We report the B band optical observations of an old (17.5 Myr) radiopulsar PSR B0950+08 obtained with the Suprime-Cam at the Subaru telescope. We detected a faint object, B=27.07(16). Within our astrometrical accuracy it coincides with the…

We observed the young ($\sim 1700$ yrs) pulsar PSR B0540-69 in the near-ultraviolet (UV) for the first time with the Space Telescope Imaging Spectrograph (STIS) aboard the {\em Hubble Space Telescope}. Imaging observations with the NUV- and…

High Energy Astrophysical Phenomena · Physics 2019-02-13 R. P. Mignani , A. Shearer , A. de Luca , F. E. Marshall , L. Guillemot , D. A. Smith , B. Rudak , L. Zampieri , C. Barbieri , G. Naletto , C. Gouiffes , G. Kanbach

We have completed part of a program to study the X-ray emission properties of old rotation-powered pulsars with XMM-Newton in order to probe and identify the origin of their X-radiation. The X-ray emission from these old pulsars is largely…

We report on the X-ray properties of four rotation-powered pulsars with characteristic ages in the range 0.3-5 Myr, derived from the analysis of XMM-Newton archival observations. We found convincing evidence of thermal emission only in the…

High Energy Astrophysical Phenomena · Physics 2018-07-18 Michela Rigoselli , Sandro Mereghetti

We report non-detections of the $\sim 3\times 10^8$ yr old, slow, isolated, rotation-powered pulsar PSR J2144$-$3933 in observations with the Hubble Space Telescope in one optical band (F475X) and two far-ultraviolet bands (F125LP and…

High Energy Astrophysical Phenomena · Physics 2019-04-17 S. Guillot , G. G. Pavlov , C. Reyes , A. Reisenegger , L. Rodriguez , B. Rangelov , O. Kargaltsev

Passively cooling neutron stars (NSs) should reach undetectably low surface temperatures $T_s<10^4$ K in less than $10^7$ yr. However, HST observations have revealed likely thermal UV emission from the Gyr-old millisecond pulsars…

A middle-aged radio-quiet pulsar J0357+3205 was discovered in gamma-rays with $Fermi$ and later in X-rays with $Chandra$ and $XMM$-$Newton$ observatories. It produces an unusual thermally-emitting pulsar wind nebula observed in X-rays. Deep…

Solar and Stellar Astrophysics · Physics 2015-12-14 Aida Kirichenko , Andrey Danilenko , Yury Shibanov , Peter Shternin , Sergey Zharikov , Dmitry Zyuzin

We observed PSR J0437-4715 with the FUV-MAMA detector of the Hubble Space Telescope Imaging Spectrometer (STIS) to measure the pulsar's spectrum and pulsations. For the first time, UV emission from a millisecond pulsar is detected. The…

Astrophysics · Physics 2009-11-10 O. Kargaltsev , G. G. Pavlov , R. W. Romani

The multi-wavelength study of old (>100 Myr) radio pulsars holds the key to understanding the long-term evolution of neutron stars, including the advanced stages of neutron star cooling and the evolution of the magnetosphere. Optical/UV…

Astrophysics · Physics 2009-11-13 R. P. Mignani , G. G. Pavlov , O. Kargaltsev

XMM-Newton observations of the middle-aged radio-quiet $\gamma$-ray pulsar J0554+3107 allowed us, for the first time, firmly identify it in X-rays by detection of pulsations with the pulsar period. In the 0.2-2 keV band, the pulse profile…

High Energy Astrophysical Phenomena · Physics 2023-05-18 A. S. Tanashkin , A. V. Karpova , A. Y. Potekhin , Y. A. Shibanov , D. A. Zyuzin

Context. The nearby middle-aged gamma-ray pulsar J1741-2054 and its pulsar wind nebula (PWN) have been studied in X-rays, and its bow-shock nebula (BSN) has been investigated in the Balmer lines, but they have never been observed in far…

High Energy Astrophysical Phenomena · Physics 2025-04-16 Vadim Abramkin , George G. Pavlov , Yuriy Shibanov , B. Posselt , Oleg Kargaltsev

The 840 kyr old pulsar PSR J1957+5033, detected so far only in $\gamma$- and X-rays, is a nearby and rather cool neutron star with a temperature of 0.2--0.3 MK, a distance of $\la$1 kpc, and a small colour reddening excess $E(B-V) \approx…

We have observed the middle-aged pulsar PSR B0656+14 with the prism and the NUV MAMA detector of the Space Telescope Imaging Spectrograph (STIS) to measure the pulsar spectrum and periodic pulsations in the near-ultraviolet (NUV). The…

Astrophysics · Physics 2009-11-11 Yu. A. Shibanov , J. Sollerman , P. Lundqvist , T. Gull , D. Lindler

The recent temperature measurements of the two older isolated neutron stars PSR 1929+10 and PSR 0950+08 (ages of $3\times 10^6$ and $2\times 10^7$ yr, respectively) indicate that these objects are heated. A promising candidate heat source…

Astrophysics · Physics 2009-10-31 Michelle B. Larson , Bennett Link
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