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Can you believe you're watching the playlist of the 9x purge champions?Knowledge of past variations in the intensity of the Earth's magnetic field provides an important constraint on models of the geodynamo. A record of absolute palaeointensity for the past 50 kyr ...

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HESS J1825-137 is one of the most powerful and luminous TeV gamma-ray pulsar wind nebulae (PWNe), making it an excellent laboratory to study particle transportation around pulsars. We present a model of the (diffusive and advective) transport and radiative losses of electrons from the pulsar PSRJ1826-1334 powering HESSJ1825-137 using interstellar medium gas (ISM) data, soft photon fields and a ...We discuss PSR J1740 + 1000, one of five pulsars recently discovered in a search of 470 deg at 430 MHz during the upgrade of the 305 m Arecibo Telescope. The period P = 154 ms and period derivative P = 2.1 x 10(exp -14) s s(exp -1) imply a spin-down age tau(sub s) = P/2P = 114 kyr that is smaller than 95% of all known pulsars. The youth and proximity of …The archive NERD provides a collation of 11,072 radiocarbon dates from 1027 archaeological sites in the Near East from the Late Pleistocene until the Late Holocene (15 - 1.5 cal. kyr BP). These dates have been collected from existing online digital archives, and electronic and print original publications.

We report the discovery of PSR J2022+3842, a 24 ms radio and X-ray pulsar in the supernova remnant G76.9+1.0, in observations with the Chandra X-ray telescope, the Robert C. Byrd Green Bank Radio Telescope, and the Rossi X-ray Timing Explorer (RXTE). The pulsar's spin-down rate implies a rotation-powered luminosity Edot = 1.2 x 10^{38} erg/s, a surface dipole magnetic field strength B_s = 1.0 ...In a search with the Parkes telescope, we have found a young and energetic pulsar that is located at the tip of this collimated linear structure. PSR J1437-5959 has period P = 61 ms, characteristic age tau{sub c}=P/(2P-dot)=114 kyr, and spin-down luminosity E-dot=1.4 x 10{sup 36} erg s{sup -1}.Abstract. Context. The characteristic age of PSR J1734-3333 estimated from its current spin down rate implies that it is a young pulsar (τc = 8.1 kyr). However, the time derivative of its spin-down rate differs markedly from that assumed for normal radio pulsars, meaning its actual age is uncertain. G354.8-0.8 is a supernova remnant (SNR ...PSR B0656+14 (P= 385 ms;マ・/font>= 1.1 テ・105yr), located at the distance of 288 ツア 30 pc (Brisken et al. 2003), is the brightest of middle-aged pulsars, in both X-rays and optical. 4Bignami et al. (1996) claimed a feature in the optical窶填V spectrum of Geminga (see also Mignani et al. 1998), but this was not supported by ...This and other considerations lead us to conclude that the pulsar is possibly older than 45 − 100 kyr. PSR J1734−3333 is a pulsar with rotational properties that place it between standard ...

up to ∼100 kyr. PSR B1706−44 is recently detected in VHE gamma-rays (Hoppe et al. 2009), and it has largely extended X-ray emission (Romani et al. 2005). However, no X-ray observation covered the entire emission, and we could not measure the extension. There are some other PWNe with known large extended X-ray nebulae, such as PSR …Velkeer, Velky Kyr. 2,289 likes · 123 talking about this · 296 were here. VELKEER winery and vineyards - Nitra region - SlovakiaWe report the discovery of three radio pulsars (PSR J0631+10, J 1843+20, and J 1908+0457) in a search targeted at Einstein IPC X-ray sources. The fastest, J0631+10, has a period of 0.288 s and high period derivative (Pdot = 104 x 10 -15 s s -1 ) corresponding to a spin-down age of only 43 kyr. From 1400 MHz to 2380 MHz the radio spectrum is nearly … ….

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Because no glitches were found in the latest 7.1 yr of timing data, this extends the time without a detected glitch for PSR B1509−58 to 28.4 yr. While the youngest pulsars (τ c < 2 kyr) tend to have smaller and fewer glitches than somewhat older pulsars (τ c ∼ 5-10 kyr), PSR B1509−58 is extreme in its lack of glitches.PSR J2004+3429 is a young pulsar with a characteristic age of ∼18 kyr. We currently rule out that PSR J2004+3429 is associated with near-by SNR G069.7+01.0, due to the high transverse velocity required to place the pulsar at its current position with respect to the remnant in the time-scale suggested by its characteristic age.up to ∼ 100 kyr. PSR B1706 ... The pulsar wind nebula (PWN) of PSR J1J1809-193 lying inside the extended γ -ray emission is a possible candidate. Powered by the central pulsar ...

We present the discovery of PSR J1410-6132, a 50-ms pulsar found during a high-frequency survey of the Galactic plane, using a 7-beam 6.3-GHz receiver on the 64-m Parkes radio telescope. The...The alkenone temperature at Station 5 before 20 kyr B.P. ranged from 8° to 12°C, and the cold-water mass corresponding to subarctic water covered the surface of the modern KBF area during the LGM. During 20-30 kyr B.P., the average alkenone temperature was calculated as 7.5°C at Station 8s, 9.6°C at Station 5, and 12.5°C at Station 6.

marion culver PSR B0355+54 (J0358+5413; hereafter B0355) is a radio-loud pulsar with characteristic age ˝= 564 kyr and spin-down power E_ = 4:5 1034 erg s 1. Using very long baseline interferometry, Chatterjee et al.(2004) derived a parallax-determined distance of 1:04+0:21 0:16 kpc and transverse proper velocity of 61+12 9 km sPSR J1906+0722 is a young, energetic, isolated pulsar, with a spin frequency of 8.9 Hz, a characteristic age of 49 kyr, and spin-down power erg s −1. In 2009 August it suffered one of the largest glitches detected from a gamma-ray pulsar (). Remaining undetected in dedicated radio follow-up observations, the pulsar is likely radio-quiet. sks rjal lwatsayt qmbl dat kam HESS J1825-137 is one of the most powerful and luminous TeV gamma-ray pulsar wind nebulae (PWNe), making it an excellent laboratory to study particle transportation around pulsars. We present a model of the (diffusive and advective) transport and radiative losses of electrons from the pulsar PSRJ1826-1334 powering HESSJ1825 …We report the discovery of PSR J2022-<-3842, a 24 ms radio and X-ray pulsar in the supernova remnant G76.9+i.0, in observations with the Chandra X-ray telescope, the Robert C. Byrd Green Bank Radio Telescope, and the Rossi X-ray Timing Explorer (RXTE). The pulsar's spin-down rate implies a rotation-powered luminosity E = 1.2 X 10(exp 38) … craigslist sebring florida cars and trucks by owner The burst rate of PSR J0628+0909 was previously measured at the Arecibo Observatory (Deneva et al. 2009), where 42 single pulses with S/N ≥ 5 were detected in the 1072-s observation. The ... imagenes de buenos diassks srycastles for sale under dollar100 000 Abstract. Context. The characteristic age of PSR J1734-3333 estimated from its current spin down rate implies that it is a young pulsar (τc = 8.1 kyr). However, the time derivative of its spin-down rate differs markedly from that assumed for normal radio pulsars, meaning its actual age is uncertain. G354.8-0.8 is a supernova remnant (SNR ... grimace mcdonald 1. Introduction [2] All serious students of Earth's climate history have heard of the "100 kyr problem" of Milankovitch orbital theory, namely the lack of an obvious explanation of the dominant ∼100 kyr periodicity in climate records of the last 800,000 years. However, few have considered an equally perplexing characteristic of Earth's climate, one that similarly defies simple physical ... dateline coeur dpercent27alenei 25 southbound closure todaytemu women The dotted ellipse shows the region excised to estimate systematic errors. from publication: Rings and Jets around PSR J2021+3651: the `Dragonfly Nebula' | We describe recent Chandra ACIS ...down age of ∼77 kyr, surface dipolar magnetic field strength of ... PSR J2021+4026 on-axis (ObsID: 11235, PI: Weisskopf) in order to constrain the evidence for the PWN. This observation has used the Advanced CCD Imaging Spectrometer (ACIS) with the aim-point on the back-illuminated CCD ACIS-S3 for an exposure of 56 ks. The major results of ...