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High cadence, multiwavelength, optical observations of a solar active region are presented, obtained with the Swedish Solar Telescope. Two magnetic bright points are seen to separate in opposite directions at a constant velocity of 2.8km/s.…

太阳与恒星天体物理 · 物理学 2015-05-18 D. B. Jess , M. Mathioudakis , P. K. Browning , P. J. Crockett , F. P. Keenan

IRAS 17256-3631 is a southern Galactic massive star forming region located at a distance of 2 kpc. In this paper, we present a multiwavelength investigation of the embedded cluster, the HII region, as well as the parent cloud. Radio images…

星系天体物理 · 物理学 2016-01-27 V. S. Veena , S. Vig , A. Tej , W. P. Varricatt , S. K. Ghosh , T. Chandrasekhar , N. M. Ashok

The Chromospheric Lyman Alpha Spectropolarimeter (CLASP) observed the Sun in H I Lyman-{\alpha} during a suborbital rocket flight on September 3, 2015. The Interface Region Imaging Telescope (IRIS) coordinated with the CLASP observations…

We have systematically investigated ultraviolet (UV) emission from molecular hydrogen (H$_{2}$) using the Interface Region Imaging Spectrometer (IRIS), during three X-ray flares of C5.1, C9.7 and X1.0 classes on Oct. 25, 2014. Significant…

太阳与恒星天体物理 · 物理学 2023-09-15 Sargam M. Mulay , Lyndsay Fletcher , Hugh Hudson , Nicolas Labrosse

We have conducted a search for ionized gas at 3.6 cm, using the Very Large Array, towards 31 Galactic intermediate- and high-mass clumps detected in previous millimeter continuum observations. In the 10 observed fields, 35 HII regions are…

We present low resolution Spitzer-IRS spectra of 40 ETGs, selected from a sample of 65 ETGs showing emission lines in their optical spectra. We homogeneously extract the mid-infrared (MIR) spectra, and after the proper subtraction of a…

宇宙学与河外天体物理 · 物理学 2015-05-20 P. Panuzzo , R. Rampazzo , A. Bressan , O. Vega , F. Annibali , L. M. Buson , M. S. Clemens , W. W. Zeilinger

We show fifty-seven enhanced radiation level events taken from new measurements on commercial altitude (greater than 9 km) aircraft that are analogous to planes flying through radiation clouds. More accurately, the plane is likely to be…

空间物理 · 物理学 2022-09-14 W. Kent Tobiska , Alexa J. Halford , Steven K. Morley

We present new narrow-band near-infrared images together with K band spectra of highly collimated bipolar jets close to the IRAS 05487+0255 source. The jets are located at 50" West of the Herbig-Haro 110 outflow. The jets are not visible at…

天体物理学 · 物理学 2009-10-30 P. Garnavich , A. Noriega-Crespo , A. Raga , K. H. Bohm

We conducted systematic observations of the H I Br$\alpha$ (4.05 $\mu$m) and Br$\beta$ (2.63 $\mu$m) lines in 52 nearby ($z<0.3$) ultraluminous infrared galaxies (ULIRGs) with AKARI. Among 33 ULIRGs wherein the lines are detected, three…

We present a 3-dimensional study of the local ($\leq 100 h^{-1}$ kpc) and the large scale ($\leq$ 1 $h^{-1}$ Mpc) environment of Bright IRAS Galaxies (BIRGs). For this purpose we use 87 BIRGs located at high galactic latitudes (with…

We present optical/near-IR IFU observations of a gas pillar in the Galactic HII region NGC 6357 containing the young open star cluster Pismis 24. These observations have allowed us to examined in detail the gas conditions of the strong…

星系天体物理 · 物理学 2015-05-14 M. S. Westmoquette , J. D. Slavin , L. J. Smith , J. S. Gallagher

The mid-infrared (IR; 5-15~$\mu$m) spectrum of a wide variety of astronomical objects exhibits a set of broad emission features at 6.2, 7.7, 8.6, 11.3 and 12.7 $\mu$m. About 30 years ago it was proposed that these signatures are due to…

星系天体物理 · 物理学 2014-07-02 Marissa J. F. Rosenberg , Olivier Berné , Christiaan Boersma

One of the most important features in the solar atmosphere is magnetic network and its rela- tionship with the transition region (TR), and coronal brightness. It is important to understand how energy is transported into the corona and how…

太阳与恒星天体物理 · 物理学 2018-03-21 Ehsan Tavabi

Approximately 0.01 % of all Si IV 1394 A spectra sampled in 2013 and 2014 by the Interface Region Imaging Spectrograph (IRIS) have IRIS burst profiles. However, these events are not evenly distributed across datasets with 19.31 % of these…

太阳与恒星天体物理 · 物理学 2022-12-14 C. J. Nelson , L. Kleint

We observe plasma flows in cool loops using the Slit-Jaw Imager (SJI) onboard the Interface Region Imaging Spectrometer (IRIS). Huang et al. (2015) observed unusually broadened Si IV 1403 angstrom line profiles at the footpoints of such…

太阳与恒星天体物理 · 物理学 2020-05-27 A. K. Srivastava , Yamini K. Rao , P. Konkol , K. Murawski , M. Mathioudakis , Sanjiv K. Tiwari , E. Scullion , J. G. Doyle , B. N. Dwivedi

The second Hi-C flight (Hi-C2.1) provided unprecedentedly-high spatial and temporal resolution ($\sim$250km, 4.4s) coronal EUV images of Fe IX/X emission at 172 \AA, of AR 12712 on 29-May-2018, during 18:56:21-19:01:56 UT. Three…

We report Radio Recombination Line (RRL) and continuum observations toward the IRAS point source 16362--4845, embedded within the Bright-Rimmed Cloud (BRC) SFO 79, a small molecular cloud lying at the edge of the HII region RCW 108. High…

天体物理学 · 物理学 2009-11-10 J. S. Urquhart , M. A. Thompson , L. K. Morgan , Glenn J. White

The Multipurpose InfraRed Imaging System (MIRIS) performed the MIRIS Pa{\alpha} Galactic Plane Survey (MIPAPS), which covers the entire Galactic plane within the latitude range of -3{\deg} < b < +3{\deg} at Pa{\alpha} (1.87 um). We present…

We present near-IR spectroscopy of a sample of 30 IRAS sources recently identified as late AGB stars, post-AGB stars or early PNe. The spectra obtained are centered at various wavelengths covering the molecular hydrogen v=1-0 S(1) and v=2-1…

天体物理学 · 物理学 2016-08-30 D. A. Garcia-Hernandez , A. Manchado , P. Garcia-Lario , C. Dominguez-Tagle , G. Conway , F. Prada

Using data from the MIRIS Pa{\alpha} Galactic Plane Survey (MIPAPS), we present a Pa{\alpha} 1.87 um line image of the entire Galactic plane within the latitude range of -3{\deg} < b < +3{\deg}, revealing numerous Pa{\alpha} features. Based…

星系天体物理 · 物理学 2025-06-26 Il-Joong Kim , Jeonghyun Pyo , Kwang-Il Seon , Woong-Seob Jeong , Takao Nakagawa , Toshio Matsumoto
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