scholarly journals Modelling the Late-time Hubble Space Telescope Imaging of the Outburst of the Recurrent Nova RS Ophiuchi (2006)

2012 ◽  
Vol 8 (S290) ◽  
pp. 137-140
Author(s):  
Valério A. R. M. Ribeiro ◽  
Michael F. Bode ◽  
Robert Williams
Keyword(s):  
High Velocity ◽  
Linear Expansion ◽  
Hubble Space Telescope ◽  
Archival Data ◽  
Late Time ◽  
Low Velocity ◽  
Space Telescope ◽  
Two Component ◽  
Recurrent Nova ◽  
Dumbbell Structure

AbstractThe nebular remnant of RS Ophiuchi was modelled using combined HST/ACS imaging and ground-based spectroscopy on day 155 after outburst as a two component bipolar expansion with a low velocity innermost hour-glass over density and a more extended high velocity dumbbell structure. The model was evolved to a much later date, day 455 after outburst, when second epoch HST images were secured. However, due to the lack of simultaneous ground-based spectroscopy the evolved model was much harder to constrain. One suggestion put forward was that the dumbbell structure expanded linearly while the inner hour-glass showed signs of deceleration. Archival data in the form of ground-based spectroscopy on day 415 were subsequently obtained. These new data suggest indeed that a non-linear expansion of the system occurred.

scholarly journals Hubble Space Telescope Far-UV Spectroscopy of the Short Orbital Period Recurrent Nova CI Aql: Implications for White Dwarf Mass Evolution

2019 ◽  
Vol 872 (1) ◽  
pp. 68
Author(s):  
Edward M. Sion ◽  
R. E. Wilson ◽  
Patrick Godon ◽  
Sumner Starrfield ◽  
Robert E. Williams ◽  
...  
Keyword(s):  
Orbital Period ◽  
White Dwarf ◽  
Hubble Space Telescope ◽  
Uv Spectroscopy ◽  
Space Telescope ◽  
Recurrent Nova

scholarly journals Hubble Space Telescope spectra of the Type Ia supernova SN 2011fe: a tail of low-density, high-velocity material with Z < Z⊙

2014 ◽  
Vol 439 (2) ◽  
pp. 1959-1979 ◽  
Author(s):  
P. A. Mazzali ◽  
M. Sullivan ◽  
S. Hachinger ◽  
R. S. Ellis ◽  
P. E. Nugent ◽  
...  
Keyword(s):  
High Velocity ◽  
Hubble Space Telescope ◽  
Low Density ◽  
Space Telescope ◽  
Type Ia Supernova ◽  
Type Ia

scholarly journals New [ITAL]Hubble Space Telescope[/ITAL] Observations of High-Velocity L[CLC]y[/CLC]α and Hα in SNR 1987A

1998 ◽  
Vol 509 (2) ◽  
pp. L117-L120 ◽  
Author(s):  
Eli Michael ◽  
Richard McCray ◽  
C. S. J. Pun ◽  
Kazimierz Borkowski ◽  
Peter Garnavich ◽  
...  
Keyword(s):  
High Velocity ◽  
Hubble Space Telescope ◽  
Space Telescope

scholarly journals Hubble Space Telescope scale 3D simulations of MHD disc winds: a rotating two-component jet structure

2014 ◽  
Vol 446 (4) ◽  
pp. 3975-3991 ◽  
Author(s):  
J. E. Staff ◽  
N. Koning ◽  
R. Ouyed ◽  
A. Thompson ◽  
R. E. Pudritz
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
3D Simulations ◽  
Two Component ◽  
Jet Structure

scholarly journals X-Ray Binaries in M51 I: Catalog and Statistics

2021 ◽  
Vol 922 (2) ◽  
pp. 178
Author(s):  
Jared R. Rice ◽  
Blagoy Rangelov ◽  
Andrea Prestwich ◽  
Rupali Chandar ◽  
Luis Bichon ◽  
...  
Keyword(s):  
Optical Properties ◽  
Data Analysis ◽  
Luminosity Function ◽  
Binary Systems ◽  
Hubble Space Telescope ◽  
Archival Data ◽  
Optical Counterpart ◽  
Space Telescope ◽  
X Ray ◽  
X Ray Binaries

Abstract We used archival data from the Chandra X-ray Observatory (Chandra) and the Hubble Space Telescope, to identify 334 candidate X-ray binary systems and their potential optical counterparts in the interacting galaxy pair NGC 5194/5195 (M51). We present the catalog and data analysis of X-ray and optical properties for those sources, from the deep 892 ks Chandra observations, along with the magnitudes of candidate optical sources as measured in the 8.16 ks Hubble Space Telescope observations. The X-ray luminosity function of the X-ray sources above a few times 1036 erg s−1 follows a power law N ( > L X , b ) ∝ L X , b 1 − α with α = 1.65 ± 0.03. Approximately 80% of sources are variable over a 30 day window. Nearly half of the X-ray sources (173/334) have an optical counterpart within 0.″5.

scholarly journals Recent Hubble Space Telescope Observations of SN 1987A: Broad Emission Lines

2013 ◽  
Vol 9 (S296) ◽  
pp. 1-8
Author(s):  
Kevin France
Keyword(s):  
Shock Front ◽  
Hubble Space Telescope ◽  
Neutral Hydrogen ◽  
Maximum Velocity ◽  
Physical Structure ◽  
Late Time ◽  
Reverse Shock ◽  
Chemical Abundances ◽  
Space Telescope ◽  
Sn 1987A

AbstractObservations with the Hubble Space Telescope (HST), conducted since 1990, have allowed us to create a “movie” of the evolution of the core-collapse supernova SN 1987A from 3–25 years after the explosion. Critical to understanding the late time evolution of SN 1987A was the successful HST Servicing Mission 4 in May 2009. The repair of the STIS instrument and the installation of the WFC3 imager and COS spectrograph have provided crucial data points for understanding the temporal variability in the physical structure and energy sources for SN 1987A, as well as measurements of the chemical abundances of the ejecta. In this proceeding, I will focus on two topics that have made use of the expanded capability of HST and highlight the importance of access to a UV/optical space observatory for the studies of local supernovae: 1) 2) The decreasing maximum velocity of neutral hydrogen crossing the reverse shock front and the role of soft X-ray/EUV heating in the outer supernova debris and 2) The detection of metals (N4+ and C3+ ions) crossing the reverse shock front and CNO processing in the progenitor star.

ALMA detection of the [OIII] 88 μm line in a highly-magnified Lyman break galaxy at z = 6.1

2019 ◽  
Vol 15 (S341) ◽  
pp. 309-311
Author(s):  
Kaho Sunaga ◽  
Yoichi Tamura ◽  
Minju Lee ◽  
Ken Mawatari ◽  
Akio K. Inoue ◽  
...  
Keyword(s):  
Interstellar Medium ◽  
Rest Frame ◽  
Hubble Space Telescope ◽  
Continuum Emission ◽  
Large Telescope ◽  
Space Telescope ◽  
Model Combining ◽  
Very Large Telescope ◽  
Stellar Component ◽  
Two Component

AbstractWe present a 4.7σ detection of the [OIII] 88 μm line in a gravitationally-lensed Lyman break galaxy, RXC J2248-ID3, using the Atacama Large Millimeter/submillimeter Array (ALMA). We did not detect [CII] 158 μm and rest-frame 90 μm dust continuum emission, suggesting that the bulk of the interstellar medium (ISM) is ionized. Our two-component SED model combining the previous Hubble Space Telescope (HST) data and new photometry obtained from Very Large Telescope (VLT), Spitzer and ALMA suggests the presence of young (∼2 Myr) and mature (∼600 Myr) stellar components with the metallicity of Z = 0.2Z⊙. Our findings are in contrast with previous results claiming a very young, metal-poor stellar component.

scholarly journals Velocities Within 1 Arcsec of the Nucleus of NGC 4151 as Revealed by the HST Faint Object Camera

1994 ◽  
Vol 159 ◽  
pp. 441-441
Author(s):  
R.M. Catchpole ◽  
A. Boksenberg ◽  
Keyword(s):  
Velocity Component ◽  
High Velocity ◽  
Hubble Space Telescope ◽  
Position Angle ◽  
Emission Lines ◽  
Low Velocity ◽  
Strong Emission ◽  
Ngc 4151 ◽  
Zero Velocity ◽  
Faint Object

We have obtained a longslit spectrum at a position angle (PA) of 84.6° and passing within 0.38 arcsec of the nucleus of NGC 4151, using the FOC f/48 camera on the Hubble Space Telescope. The spectrum shows strong emission lines including [OII] λ 3727 and [OIII] λλ 4959, 5007. By fitting with Gaussian velocity profiles, we resolve the emission lines, within 1 arcsec of the nucleus, into a high and low velocity component. The low velocity component has a total range in radial velocity of 200 km s−1 and appears to be associated with material comprising the knots seen in the FOC, F501N [O III] image of NGC 4151, illustrated in Boksenberg (1993). The much weaker high velocity system has a range of 1000 km s−1, is more smoothly distributed in brightness and shows a peak brightness close to the nucleus. Because the slit did not intersect the nucleus it is possible to determine the PA at which the two velocity systems cross the zero velocity axis. This is at PA −26° for the low velocity system and PA +32° for the high velocity system. These PA values may be subject to a systematic error as the zero velocity is defined by the mean position of the line, in the absence of any external calibration.

scholarly journals Hubble Space Telescope Imaging of the Expanding Nebular Remnant of the 2006 Outburst of the Recurrent Nova RS Ophiuchi

2007 ◽  
Vol 665 (1) ◽  
pp. L63-L66 ◽  
Author(s):  
M. F. Bode ◽  
D. J. Harman ◽  
T. J. O'Brien ◽  
Howard E. Bond ◽  
S. Starrfield ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Recurrent Nova

scholarly journals HUBBLE SPACE TELESCOPE FAR ULTRAVIOLET SPECTROSCOPY OF THE RECURRENT NOVA T PYXIDIS

2014 ◽  
Vol 784 (2) ◽  
pp. L33 ◽  
Author(s):  
Patrick Godon ◽  
Edward M. Sion ◽  
Sumner Starrfield ◽  
Mario Livio ◽  
Robert E. Williams ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Ultraviolet Spectroscopy ◽  
Space Telescope ◽  
Recurrent Nova ◽  
Far Ultraviolet
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