Signals from the Beginnings of the World - Max-Planck
... Sun has produced during its entire 10-billion-year lifetime. The radiation signal propagated away from the site of this inferno at the speed of light. After travelling for 13 billion years, the flash finally arrived near Earth: on April 23, 2009, it flared up in the Leo constellation – astronomers o ...
... Sun has produced during its entire 10-billion-year lifetime. The radiation signal propagated away from the site of this inferno at the speed of light. After travelling for 13 billion years, the flash finally arrived near Earth: on April 23, 2009, it flared up in the Leo constellation – astronomers o ...
Tod E. Strohmayer - UCLA Physics & Astronomy
... – Non-dispersive — spectral resolution not affected by source angular size ...
... – Non-dispersive — spectral resolution not affected by source angular size ...
Deriving the detailed structure of EBs using the narrowband
... Hida observatory, Kyoto University. EBs are small explosion phenomena that occur in the lower chromosphere. The spectral profile of EBs has a characteristic structure of an absorption core at the Ha line center and asymmetric wide emissions in both red and blue wings. EBs generally occur in emerging ...
... Hida observatory, Kyoto University. EBs are small explosion phenomena that occur in the lower chromosphere. The spectral profile of EBs has a characteristic structure of an absorption core at the Ha line center and asymmetric wide emissions in both red and blue wings. EBs generally occur in emerging ...
the spitzer space telescope mission
... passage of infrared light from the telescope into the instrument chamber. For this purpose a removable vacuum window was constructed of gold-film–coated sapphire to allow the cold instruments to perform visible and near-infrared alignment of the CTA optical train on the ground without having to depl ...
... passage of infrared light from the telescope into the instrument chamber. For this purpose a removable vacuum window was constructed of gold-film–coated sapphire to allow the cold instruments to perform visible and near-infrared alignment of the CTA optical train on the ground without having to depl ...
X-ray polarimetry in astrophysics
... collapse of a massive rotating star produces a hot fireball which is ejected at relativistic velocity in form of a jet. Internal shocks are responsible for the observed variability (prompt emission). When the fireball interacts with the ambient medium it is produced an afterglow. At first the jet is ...
... collapse of a massive rotating star produces a hot fireball which is ejected at relativistic velocity in form of a jet. Internal shocks are responsible for the observed variability (prompt emission). When the fireball interacts with the ambient medium it is produced an afterglow. At first the jet is ...
Space telescopes - International Space Science Institute
... (GI) telescopes could be considered as an alternative. At even shorter wavelengths, i.e., shorter than about 5 nm up to hard X-rays with photon energies up to about 100 keV, GI telescopes are the only choice. To increase the mirror reflectivity both for NI and for GI mirrors, multilayer coatings hav ...
... (GI) telescopes could be considered as an alternative. At even shorter wavelengths, i.e., shorter than about 5 nm up to hard X-rays with photon energies up to about 100 keV, GI telescopes are the only choice. To increase the mirror reflectivity both for NI and for GI mirrors, multilayer coatings hav ...
Solar flare
... A Solar flare is an explosion on the Sun that happens when energy stored in twisted magnetic fields, usually above sunspots, is suddenly released. Flares produce a burst of radiation across the electromagnetic spectrum, from radio waves to x-rays and gamma-rays, including high-energy particles, i.e. ...
... A Solar flare is an explosion on the Sun that happens when energy stored in twisted magnetic fields, usually above sunspots, is suddenly released. Flares produce a burst of radiation across the electromagnetic spectrum, from radio waves to x-rays and gamma-rays, including high-energy particles, i.e. ...
Stellar-Mass Black Holes and Ultraluminous X
... onto the central black hole. The disc, radio emission at gigahertz radio fredisc initially neutral, slowly rises in temperquencies (11). This radio emission ature as the mass accumulates, until (LR) correlates in strength with the at some point it reaches ~4000 K and x-ray emission (LX) in a nonline ...
... onto the central black hole. The disc, radio emission at gigahertz radio fredisc initially neutral, slowly rises in temperquencies (11). This radio emission ature as the mass accumulates, until (LR) correlates in strength with the at some point it reaches ~4000 K and x-ray emission (LX) in a nonline ...
Light: The Cosmic Messenger
... like visible-light telescopes but need to be above atmosphere to see all IR and UV wavelengths ...
... like visible-light telescopes but need to be above atmosphere to see all IR and UV wavelengths ...
SOLAR PHYSICS
... have been ionized only the heavier trace elements like iron and calcium are able to retain a few of their electrons in this intense heat It is emission from these elements that produce the color associated with the emission line corona http://science.msfc.nasa.gov/ssl/pad/solar/corona.htm ...
... have been ionized only the heavier trace elements like iron and calcium are able to retain a few of their electrons in this intense heat It is emission from these elements that produce the color associated with the emission line corona http://science.msfc.nasa.gov/ssl/pad/solar/corona.htm ...
The Mystery of Gamma Ray Bursts
... the magnetic field and push it out into space, or it could generate a new magnetic field at some distance from the GRB source, or it could (amazingly) consist of pure magnetic energy without any particles, or it could impact with an extant magnetic field. Götz et al (2009) showed that the best model ...
... the magnetic field and push it out into space, or it could generate a new magnetic field at some distance from the GRB source, or it could (amazingly) consist of pure magnetic energy without any particles, or it could impact with an extant magnetic field. Götz et al (2009) showed that the best model ...
