η Carinae: Testing a Binary Orbit Model with the [ITAL]Hubble Space Telescope[/ITAL]/Space Telescope Imaging Spectrograph

2000 ◽  
Vol 530 (2) ◽  
pp. L107-L110 ◽  
Author(s):  
Kris Davidson ◽  
Kazunori Ishibashi ◽  
Theodore R. Gull ◽  
Roberta M. Humphreys ◽  
Nathan Smith
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Binary Orbit ◽  
Orbit Model ◽  
Imaging Spectrograph

scholarly journals [ITAL]Hubble Space Telescope[/ITAL] Space Telescope Imaging Spectrograph Imaging of the Host Galaxy of GRB 980425/SN 1998[CLC]bw[/CLC]

2000 ◽  
Vol 542 (2) ◽  
pp. L89-L93 ◽  
Author(s):  
J. U. Fynbo ◽  
S. Holland ◽  
M. I. Andersen ◽  
B. Thomsen ◽  
J. Hjorth ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Host Galaxy ◽  
Space Telescope ◽  
Imaging Spectrograph

scholarly journals The Interstellar Abundance of Lead: Experimental Oscillator Strengths for Pb ii λ1203 and λ1433 and New Detections of Pb ii in the Interstellar Medium

2015 ◽  
Vol 11 (A29A) ◽  
Author(s):  
A. M. Ritchey ◽  
N. Heidarian ◽  
R. E. Irving ◽  
S. R. Federman ◽  
D. G. Ellis ◽  
...  
Keyword(s):  
Interstellar Medium ◽  
Hubble Space Telescope ◽  
Oscillator Strengths ◽  
Interstellar Gas ◽  
Lifetime Measurements ◽  
Space Telescope ◽  
Interstellar Grains ◽  
Imaging Spectrograph ◽  
Theoretical Results ◽  
Beam Foil

AbstractWe present the first experimentally determined oscillator strengths for the Pb ii transitions at 1203.6 Å and 1433.9 Å, obtained from lifetime measurements made using beam-foil techniques. We also present new detections of these lines in the interstellar medium from an analysis of archival spectra acquired by the Space Telescope Imaging Spectrograph onboard the Hubble Space Telescope. Our observations of the Pb ii λ1203 line represent the first detection of this transition in interstellar gas. Our experimental f-values for the Pb ii λ1203 and λ1433 transitions are consistent with recent theoretical results, including our own relativistic calculations, but are significantly smaller than previous values based on older calculations. Our new f-value for Pb ii λ1433 (0.321 ± 0.034) yields an increase in the interstellar abundance of Pb of 0.43 dex over estimates based on the f-value listed by Morton. With our revised f-values, and with our new detections of Pb ii λ1203 and λ1433, we find that the depletion of Pb onto interstellar grains is not nearly as severe as previously thought, and is very similar to the depletions seen for elements such as Zn and Sn, which have similar condensation temperatures.

scholarly journals The Space Telescope Imaging Spectrograph

1989 ◽  
Vol 8 ◽  
pp. 445-448
Author(s):  
Bruce E Woodgate
Keyword(s):  
First Generation ◽  
Second Generation ◽  
Hubble Space Telescope ◽  
Space Telescope ◽  
Infra Red ◽  
Imaging Spectrograph

The Space Telescope Imaging Spectrograph (STIS) is a second generation instrument to be installed into the Hubble Space Telescope (HST) in-orbit 5–9 years after the first launch. Together with the infra-red instrument, it will provide a large increase in capability of the observatory, and be able to replace a first generation that had failed or degraded.

scholarly journals THE DEEP BLUE COLOR OF HD 189733b: ALBEDO MEASUREMENTS WITH HUBBLE SPACE TELESCOPE /SPACE TELESCOPE IMAGING SPECTROGRAPH AT VISIBLE WAVELENGTHS

2013 ◽  
Vol 772 (2) ◽  
pp. L16 ◽  
Author(s):  
Thomas M. Evans ◽  
Frédéric Pont ◽  
David K. Sing ◽  
Suzanne Aigrain ◽  
Joanna K. Barstow ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Blue Color ◽  
Space Telescope ◽  
Deep Blue ◽  
Visible Wavelengths ◽  
Imaging Spectrograph

scholarly journals STIS Coronagraphic Observations of β Pictoris

2004 ◽  
Vol 202 ◽  
pp. 338-340
Author(s):  
S. R. Heap ◽  
D. J. Lindler ◽  
T. M. Lanz
Keyword(s):  
High Resolution ◽  
Spectral Region ◽  
Hubble Space Telescope ◽  
Space Telescope ◽  
High Resolution Images ◽  
Imaging Spectrograph

We present recent coronagraphic observations of β Pictoris obtained with the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space Telescope. The superb, high-resolution images show that the inner part of the disk is inclined by about 5° with respect to the main disk. Long-slit coronagraphic spectrograms oriented along the inner disk indicate that the reflectance of the inner disk is neutral over the spectral region, 3000-5600 Å.

scholarly journals The far-ultraviolet main auroral emission at Jupiter – Part 2: Vertical emission profile

2015 ◽  
Vol 33 (10) ◽  
pp. 1211-1219 ◽  
Author(s):  
B. Bonfond ◽  
J. Gustin ◽  
J.-C. Gérard ◽  
D. Grodent ◽  
A. Radioti ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Total Power ◽  
Space Telescope ◽  
Auroral Emission ◽  
Ultraviolet Range ◽  
Auroral Emissions ◽  
Generation Mechanisms ◽  
Far Ultraviolet ◽  
Advanced Camera For Surveys ◽  
Imaging Spectrograph

Abstract. The aurorae at Jupiter are made up of many different features associated with a variety of generation mechanisms. The main auroral emission, also known as the main oval, is the most prominent of them as it accounts for approximately half of the total power emitted by the aurorae in the ultraviolet range. The energy of the precipitating electrons is a crucial parameter to characterize the processes at play which give rise to these auroral emissions, and the altitude of the emissions directly depends on this energy. Here we make use of far-UV (FUV) images acquired with the Advanced Camera for Surveys on board the Hubble Space Telescope and spectra acquired with the Space Telescope Imaging Spectrograph to measure the vertical profile of the main emissions. The altitude of the brightness peak as seen above the limb is ~ 400 km, which is significantly higher than the 250 km measured in the post-dusk sector by Galileo in the visible domain. However, a detailed analysis of the effect of hydrocarbon absorption, including both simulations and FUV spectral observations, indicates that FUV apparent vertical profiles should be considered with caution, as these observations are not incompatible with an emission peak located at 250 km. The analysis also calls for spectral observations to be carried out with an optimized geometry in order to remove observational ambiguities.

[ITAL]Hubble Space Telescope[/ITAL] Space Telescope Imaging Spectrograph Search for an Atmosphere on Callisto: A Jovian Unipolar Inductor

2002 ◽  
Vol 581 (1) ◽  
pp. L51-L54 ◽  
Author(s):  
Darrell F. Strobel ◽  
Joachim Saur ◽  
Paul D. Feldman ◽  
Melissa A. McGrath
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Imaging Spectrograph

scholarly journals Quantifying the AGN-driven outflows in ULIRGs (QUADROS) IV: HST/STIS spectroscopy of the sub-kpc warm outflow in F14394+5332

2019 ◽  
Vol 488 (2) ◽  
pp. 1813-1821 ◽  
Author(s):  
C Tadhunter ◽  
L Holden ◽  
C Ramos Almeida ◽  
D Batcheldor
Keyword(s):  
Hubble Space Telescope ◽  
Outer Part ◽  
Ionization State ◽  
Space Telescope ◽  
High Ionization ◽  
Mass Outflow ◽  
Outflow Region ◽  
First Time ◽  
Imaging Spectrograph ◽  
Luminous Infrared Galaxy

ABSTRACT Considerable uncertainties remain about the nature of warm, AGN-driven outflows and their impact on the evolution of galaxies. This is because the outflows are often unresolved in ground-based observations. As part of a project to study the AGN outflows in some of the most rapidly evolving galaxies in the local Universe, here we present Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) observations of F14394+5332E that resolve the sub-kpc warm outflow for the first time in an ultra-luminous infrared galaxy. The observations reveal a compact, high-ionization outflow region (rmax ∼ 0.9 kpc) set in a more extensive (rmax ∼ 1.4 kpc) halo that is kinematically quiescent and has a lower ionization state. A large line width (600 < FWHM < 1500 km s−1) is measured throughout the outflow region, and the outflowing gas shows a steep velocity gradient with radius, with the magnitude of the blueshifted velocities increasing from ∼500 to 1800 km s−1 from the inner to the outer part of the outflow. We interpret the observations in terms of the local acceleration, and hydrodynamic destruction, of dense clouds as they are swept up in a hot, low-density wind driven by the AGN. We discuss the implications for measuring the mass outflow rates and kinetic powers for the AGN-driven outflows in such objects.

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