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Related papers: Diffuse Far-ultraviolet Observation of the Lupus L…

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We present the Spitzer spectroscopic mapping observations toward the central kpc region of the nearby elliptical LINER galaxy, NGC 4278, by using the Infrared Spectrograph (IRS). These observations reveal rich mid-IR emission features of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Yuping Tang , Qiusheng Gu , Shuinai Zhang , Baitian Tang

We investigate the evolution of extreme ultraviolet (XUV) spectral lineshapes in an optically-thick helium gas under near-infrared (IR) perturbation. In our experimental and theoretical work, we systematically vary the IR intensity,…

Atomic Physics · Physics 2016-03-09 Chen-Ting Liao , Seth Camp , Kenneth J. Schafer , Mette B. Gaarde , Arvinder Sandhu

We use UV spectral observations of active regions with the Interface Region Imaging Spectrograph (IRIS) to investigate the properties of the coronal FeXII 1349.4A emission at unprecedented high spatial resolution (~0.33"). We find that by…

Solar and Stellar Astrophysics · Physics 2016-08-17 Paola Testa , Bart De Pontieu , Viggo Hansteen

Galactic cirrus emission at far-infrared wavelengths affects many extragalactic observations. Separating this emission from that associated with extragalactic objects is both important and difficult. In this paper we discuss a particular…

Galaxy and occupies perhaps a quarter of the volume of the Galactic disk. Decoding the spectrum of the Galactic diffuse ionizing field is of fundamental interest. This can be done via direct measurements of ionization fractions of various…

Astrophysics of Galaxies · Physics 2023-03-07 S. R. Kulkarni , Charles Beichman , Michael E. Ressler

The properties of solar flare plasma can be determined from the observation of optically thin lines. The emitting ion distribution determines the shape of the line, with an isothermal Maxwellian ion distribution producing a Gaussian…

Solar and Stellar Astrophysics · Physics 2016-05-25 Natasha Jeffrey , Lyndsay Fletcher , Nicolas Labrosse

The [CII] 158 micron line is one of the strongest emission lines observed in star-forming galaxies, and has been empirically measured to correlate with the star formation rate (SFR) globally and on ~kpc scales. However, due to the…

Astrophysics of Galaxies · Physics 2015-06-23 M. J. Kapala , K. Sandstrom , B. Groves , K. Croxall , K. Kreckel , J. Dalcanton , A. Leroy , E. Schinnerer , F. Walter , M. Fouesneau

In a series of two papers we present results of a new H-alpha imaging survey, aiming at the detection of extraplanar diffuse ionized gas in halos of late-type spiral galaxies. We have investigated a sample of 74 nearby edge-on spirals,…

Astrophysics · Physics 2009-11-07 Joern Rossa , Ralf-Juergen Dettmar

We used the $H\alpha$ images from a large sample of nearby late-type dwarf galaxies to investigate properties of their emission structure. The sample consists of three hundred galaxies of the irregular (Irr), Magellanic irregular (Im), blue…

Astrophysics of Galaxies · Physics 2020-12-16 Karachentsev I. D. , Kaisin S. S

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…

The source of fluorine is not well understood, although core-collapse supernovae, Wolf-Rayet stars, and asymptotic giant branch stars have been suggested. A search for evidence of the nu process during Type II supernovae is presented.…

Astrophysics · Physics 2009-11-10 S. R. Federman , Yaron Sheffer , David L. Lambert , V. V. Smith

Far ultraviolet (FUV) emission lines from dwarf stars are important driving sources of photochemistry in planetary atmospheres. Properly interpreting spectral features of planetary atmospheres critically depends on the emission of its host…

Earth and Planetary Astrophysics · Physics 2023-08-10 F. Cruz Aguirre , K. France , N. Nell , N. Kruczek , B. Fleming , P. C. Hinton , S. Ulrich , P. R. Behr

We present spectroscopic observations of ionized gas in the disk-halo regions of five edge-on galaxies, covering a wavelength range from [OII] 3727A to [SII] 6716.4A. The inclusion of the [OII] emission provides additional constraints on…

Astrophysics · Physics 2009-11-07 B. Otte , J. S. Gallagher , R. J. Reynolds

We present Suzaku spectra of X-ray emission in the fields just off the LMC X-3 sight line. OVII, OVIII, and NeIX emission lines are clearly detected, suggesting the presence of an optically thin thermal plasma with an average temperature of…

Astrophysics · Physics 2008-12-18 Y. Yao , Q. D. Wang , T. Hagihara , K. Mitsuda , D. McCammon , N. Y. Yamasaki

We present far-ultraviolet spectra of the Seyfert 1 galaxy Mrk 509 obtained in 1999 November with the Far Ultraviolet Spectroscopic Explorer (FUSE). Our data span the observed wavelength range 915-1185 A at a resolution of ~20 km/s. The…

We report a Far Ultraviolet Spectroscopic Explorer satellite observation of the supernova remnant N49 in the Large Magellanic Cloud, covering the 905 -- 1187 A spectral region. A 30'' square aperture was used, resulting in a velocity…

Far ultraviolet spectra were obtained of the active cool star AB Doradus (HD 36705) during the calibration and checkout period of the FUSE satellite. Observations in this early phase of the mission were taken at a resolving power of…

We present a study of star forming regions and its demographics in the nearby dwarf irregular galaxy WLM using the Ultra-Violet Imaging Telescope (UVIT) multi band observations in three filters F148W, N245M and N263M. We find that the UV…

Astrophysics of Galaxies · Physics 2018-08-29 Chayan Mondal , Annapurni Subramaniam , Koshy George

We present the distribution map of the far-infrared [OIII] 88um line emission around the 30 Doradus (30 Dor) region in the Large Magellanic Cloud obtained with the Fourier Transform Spectrometer of the Far-Infrared Surveyor onboard AKARI.…

We present spectrophotometric ISO imaging with the LWS and the CAM-CVF of the Serpens molecular cloud core. The LWS map is centred on the far infrared and submillimetre source SMM1 and its size is 8' x 8'. The fine structure line emission…

Astrophysics · Physics 2009-11-07 B. Larsson , R. Liseau , A. B. Men'shchikov
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