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Swift and Suzaku Observations of the X-Ray Afterglow from the GRB 060105
Maeda, Yoshitomo; Kelley, Richard L.; Yamaoka, Kazutaka +34 more
Results are presented of early X-ray afterglow observations of GRB 060105 by Swift and Suzaku. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope at 06:49:28 on 2006 January 5 (T0). The Suzaku team commenced a pre-planned target of opportunity observation at 19ks (5.3hr) after the Swift trigger. The X-…
Two-Step Reconnections in a C3.3 Flare and Its Preflare Activity Observed by Hinode XRT
Chae, Jongchul; Kim, Sujin; Kim, Yeon-Han +4 more
We investigated the evolution of a C3.3 impulsive flare and its preflare activity, which occurred in NOAA Active Region 10923 on 2006 November 12, using Hinode X-Ray Telescope (XRT) data. For an extensive investigation, we also used GOES X-ray flux, TRACE 171Å, and SOHO MDI data. Examining the time-series of the XRT and TRACE images, we can identi…
An On-Orbit Determination of the On-Axis Point Spread Function of the Hinode X-Ray Telescope
Golub, Leon; Narukage, Noriyuki; Sakao, Taro +5 more
The Hinode X-ray Telescope provides unprecedented observations of the solar corona in X-rays, due in part to its fine resolution. The X-ray point spread function (PSF) was measured before launch at the NASA X-ray Calibration Facility to have a FWHM of 0.8''. This paper describes the work to verify the PSF measurements using on-orbit observations o…
Far-Infrared Distributions in Nearby Spiral GalaxiesNGC 2841 and NGC 2976 Observed with AKARI/Far-Infrared Surveyor (FIS)
Serjeant, S.; Nakagawa, T.; Okada, Y. +9 more
Far-infrared (IR) images of the nearby Sb galaxy NGC 2841 and the Sc galaxy NGC 2976 at wavelengths of 65, 90, 140, and 160 ∼ bridge in the M 81/M 82 group that NGC 2976 belongs to. By taking advantage of a wealth of the far-IR bands of the FIS, it has been demonstrated that the spectral energy distribution of NGC 2841 is spatially more variable t…
Center-to-Limb Variation of Stokes V Asymmetries in Solar Pores Observed with the Hinode Spectro-Polarimeter
Tsuneta, Saku; Shimizu, Toshifumi; Kubo, Masahito +10 more
Here we present spectro-polarimetric measurements of several pores and the surrounding regions taken with the Solar Optical Telescope aboard Hinode at various viewing angles. We analyzed the Stokes V area asymmetry, and confirmed that it is depressed at the center of the pores, while it shows large positive values (a blue lobe larger than a red lo…
Detection of an Hα Emission Line on a Quasar, RX J1759.4+6638, at z = 4.3 with AKARI
Ohyama, Y.; Takagi, T.; Matsuhara, H. +18 more
We report on the detection of an Hα) is consistent with those of previous reports for lower-redshift quasars.
Subaru Near-Infrared Multicolor Images of Class II Young Stellar Object, RNO 91
Tamura, Motohide; Hayashi, Masahiko; Kudo, Tomoyuki +6 more
We conducted subarcsecond near-infrared imaging observations of RNO 91 with CIAO (Coronagraphic Imager with Adaptive Optics) mounted on the 8.2m Subaru telescope. We present our JHK band data along with optical images, which when considered together reveal a complex circumstellar structure. We examined the colors of associated nebulae and compared…
Discovery of a New X-Ray Transient Source in the Scutum Region with Suzaku
Ishida, Manabu; Kokubun, Motohide; Koyama, Katsuji +7 more
During an observation of the Galactic plane in the Scutum region with the Suzaku satellite, we discovered a new X-ray transient source, designated Suzaku J1844-0404. Compared with previous Chandra observations of the same field, four Chandra X-ray sources exist within the current positional uncertainty of Suzaku J1844-0404. A firm identification i…
Hot and Cool Loops Composing the Corona of the Quiet Sun
Hara, Hirohisa; Culhane, Len; Watanabe, Tetsuya +3 more
We performed a raster scan observation of the quiet Sun with the EUV Imaging Spectrometer (EIS) aboard Hinode and simultaneously analyzed observed emission lines of Fe VIII to XV. From a combined analysis, radiance maps from the observed emission lines were deconvolved into plasma components at five representative temperatures between 0.40MK and 2…