poster
... m and 4.5m using the warm mission capabilities of Spitzer. The sampling varies with the region, but most star forming regions were observed 50-100 times, on scales of hours to months. Here, we present results for the L1688 cloud in Oph. The emission from young stellar objects (YSOs) in the mid-I ...
... m and 4.5m using the warm mission capabilities of Spitzer. The sampling varies with the region, but most star forming regions were observed 50-100 times, on scales of hours to months. Here, we present results for the L1688 cloud in Oph. The emission from young stellar objects (YSOs) in the mid-I ...
DISCOVERY OF HOT SUPERGIANT STARS NEAR THE GALACTIC
... star counterparts (Lbol 105 Y106 L ) to X-ray sources within a projected distance of 30 pc from Sgr A (Muno et al. 2006b; Mikles et al. 2006). The objects found may be either massive Wolf-Rayet (WR)/O stars in colliding-wind binaries (CWBs), accreting neutron stars and black holes in high-mass X ...
... star counterparts (Lbol 105 Y106 L ) to X-ray sources within a projected distance of 30 pc from Sgr A (Muno et al. 2006b; Mikles et al. 2006). The objects found may be either massive Wolf-Rayet (WR)/O stars in colliding-wind binaries (CWBs), accreting neutron stars and black holes in high-mass X ...
Clusters of Galaxies
... These early rocket results were entirely serendipitous, as no one had any idea that clusters of " galaxies should be luminous x-ray sources. Thus the study of clusters, as so much in the field of x-ray astronomy, was entirely an unexpected discovery. " • the first all sky x-ray survey, with the Uhu ...
... These early rocket results were entirely serendipitous, as no one had any idea that clusters of " galaxies should be luminous x-ray sources. Thus the study of clusters, as so much in the field of x-ray astronomy, was entirely an unexpected discovery. " • the first all sky x-ray survey, with the Uhu ...
Forman - Chandra X
... and the Bootes Team Bootes Survey 9.3 sq. degrees with Chandra 4632 X-ray sources 1600 optical spectra NOAO Deep Wide Field Survey AGES Optical Spectroscopic Survey 20,000 galaxy spectra Key to success is contiguous area and efficient spectroscopy with Hectospec ...
... and the Bootes Team Bootes Survey 9.3 sq. degrees with Chandra 4632 X-ray sources 1600 optical spectra NOAO Deep Wide Field Survey AGES Optical Spectroscopic Survey 20,000 galaxy spectra Key to success is contiguous area and efficient spectroscopy with Hectospec ...
15 Years of Science with XMM-Newton
... - XMM-Newton, radio and other X-ray satellites observations of X-ray transient IGR J18245–2452, which was first detected by INTEGRAL - First observations of accretion-powered, millisecond X-ray pulsations from a neutron star previously seen as a rotation-powered radio pulsar. - Within a few days aft ...
... - XMM-Newton, radio and other X-ray satellites observations of X-ray transient IGR J18245–2452, which was first detected by INTEGRAL - First observations of accretion-powered, millisecond X-ray pulsations from a neutron star previously seen as a rotation-powered radio pulsar. - Within a few days aft ...
Document
... Dwarf nova: disk instability, outbursts 2-7 mag every week-30 yrs Novalike: high, low states on timescales of months, high accretion ...
... Dwarf nova: disk instability, outbursts 2-7 mag every week-30 yrs Novalike: high, low states on timescales of months, high accretion ...
ULXs: General Properties and Variability - X
... •evidence against beaming (QPOs, broad Fe Lines, eclipses) •At least one object has a break in the PDS at the frequency predicted for M~1000M objects •Associated extended radio sources •General lack of optical Ids (massive stars would be seen) •they lie near, but not in star forming regions Kyoto me ...
... •evidence against beaming (QPOs, broad Fe Lines, eclipses) •At least one object has a break in the PDS at the frequency predicted for M~1000M objects •Associated extended radio sources •General lack of optical Ids (massive stars would be seen) •they lie near, but not in star forming regions Kyoto me ...
Superconducting Detectors: Sensitivity Over Ten Orders of Magnitude
... Is a particular nation violating nuclear treaties? Can we account for all of their plutonium? Do we know what it is being used for? Gamma-ray spectroscopy What is this defect in my semiconductor wafer? How can I fix it? Soft x-ray spectroscopy (now commercial!) Do we understand the electron structur ...
... Is a particular nation violating nuclear treaties? Can we account for all of their plutonium? Do we know what it is being used for? Gamma-ray spectroscopy What is this defect in my semiconductor wafer? How can I fix it? Soft x-ray spectroscopy (now commercial!) Do we understand the electron structur ...
Natasha Wood
... How will you be doing the comparisons? An active galactic nucleus (AGN) is a relatively small region of space at the center of a galaxy that is very luminous over all or part of the electromagnetic spectrum1. This radiation is theorized to be a product of massive black holes at the center of all AGN ...
... How will you be doing the comparisons? An active galactic nucleus (AGN) is a relatively small region of space at the center of a galaxy that is very luminous over all or part of the electromagnetic spectrum1. This radiation is theorized to be a product of massive black holes at the center of all AGN ...
X-ray binaries
... and Magellanic Clouds LMXBs with NSs and BHs as accreting components. Donors can be WDs, or normal low-mass stars (main sequence or sub-giants). Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an a ...
... and Magellanic Clouds LMXBs with NSs and BHs as accreting components. Donors can be WDs, or normal low-mass stars (main sequence or sub-giants). Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an a ...
X-ray binaries
... and Magellanic Clouds LMXBs with NSs and BHs as accreting components. Donors can be WDs, or normal low-mass stars (main sequence or sub-giants). Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an a ...
... and Magellanic Clouds LMXBs with NSs and BHs as accreting components. Donors can be WDs, or normal low-mass stars (main sequence or sub-giants). Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an a ...
ppt - IASF Milano
... contraction (AC) could play a role i.e. DM halo responds to condensations of baryons into stars, which should cause the ...
... contraction (AC) could play a role i.e. DM halo responds to condensations of baryons into stars, which should cause the ...
Semiar PPT
... (BAT sensitivity, 15-150 kev, is 0.25 photons cm-2 s-1 or 1.2x10-8 erg cm-2 s-1 for fn n-1/2) So Swift can detect bursts like 050904 to Z~10. ...
... (BAT sensitivity, 15-150 kev, is 0.25 photons cm-2 s-1 or 1.2x10-8 erg cm-2 s-1 for fn n-1/2) So Swift can detect bursts like 050904 to Z~10. ...
CV - iucaa
... • “Astrosat – A Multi-wavelength satellite”, Explosive transients in the universe, Greece, September 2013 • “Time domain science with Indian telescopes”, Caltech, August 2013 • “Building X-ray Telescopes”, IISc, April 2013 Publications • Singer, L. P., Kasliwal, M. M., Cenko, S. B., et al. The Needl ...
... • “Astrosat – A Multi-wavelength satellite”, Explosive transients in the universe, Greece, September 2013 • “Time domain science with Indian telescopes”, Caltech, August 2013 • “Building X-ray Telescopes”, IISc, April 2013 Publications • Singer, L. P., Kasliwal, M. M., Cenko, S. B., et al. The Needl ...
Diffuse TeV Emission from the Galactic Center
... Intensity assuming Sagittarius A* as source of relativistic protons matched to intensity range of HESS (Wommer et al. 2008) ...
... Intensity assuming Sagittarius A* as source of relativistic protons matched to intensity range of HESS (Wommer et al. 2008) ...
Extraordinary Gamma-Ray Burst
... galaxies that are close to the Milky Way. These black holes produce quasars, highly luminous jets that beam prodigious amounts of energy into space. The observed X-ray luminosity of Swift 1644+57, however, is well beyond that seen from typical quasars, while its optical luminosity is approximately 1 ...
... galaxies that are close to the Milky Way. These black holes produce quasars, highly luminous jets that beam prodigious amounts of energy into space. The observed X-ray luminosity of Swift 1644+57, however, is well beyond that seen from typical quasars, while its optical luminosity is approximately 1 ...
- IRSF: Past and Future
... associated with accretion onto dense objects. Over the last decade or so, optical imaging surveys, like OGLE, CRTS, MASTER and ASAS-SN, have increased the rate of discoveries of many different types of optical transients, including CVs, SNe, GRB afterglows, eruptive variables and flaring blazars. Th ...
... associated with accretion onto dense objects. Over the last decade or so, optical imaging surveys, like OGLE, CRTS, MASTER and ASAS-SN, have increased the rate of discoveries of many different types of optical transients, including CVs, SNe, GRB afterglows, eruptive variables and flaring blazars. Th ...
MICROQUASARS - Osservatorio Astronomico di Roma-INAF
... X-RAY - RADIO CORRELATIONS IN LOW-POWER BHs OF ALL MASSES Radio-X-ray correlation in low-hard state mQSOs (Corbel et al. 02; Gallo, Fender & Pooley, 03; Maccarone et al.03) The power output of quiescent BHs is jet-dominated In high-soft X-ray state the radio jets are quenched. Also in AGN. ...
... X-RAY - RADIO CORRELATIONS IN LOW-POWER BHs OF ALL MASSES Radio-X-ray correlation in low-hard state mQSOs (Corbel et al. 02; Gallo, Fender & Pooley, 03; Maccarone et al.03) The power output of quiescent BHs is jet-dominated In high-soft X-ray state the radio jets are quenched. Also in AGN. ...
arXiv 2011 Feroci
... steady progression of ever larger-area, hence more sensitive, X-ray timing instrumentation, from Uhuru (US, 0.08 m2 , [11]), via satellites such as EXOSAT (ESA, [21]) and Ginga (Japan, [29]) to, most recently, RXTE (US, 0.6 m2 , [27]). The latter instrument, thanks to it having the largest area so f ...
... steady progression of ever larger-area, hence more sensitive, X-ray timing instrumentation, from Uhuru (US, 0.08 m2 , [11]), via satellites such as EXOSAT (ESA, [21]) and Ginga (Japan, [29]) to, most recently, RXTE (US, 0.6 m2 , [27]). The latter instrument, thanks to it having the largest area so f ...
Informational Brochure "Enlightening Science"
... of planets and stars. The new facility will benefit many scientific fields and technological applications, including biology, medicine, pharmacology, chemistry, materials science, physics, astrophysics, energy research, environmental research, electronics, nanotechnology, and photonics. ...
... of planets and stars. The new facility will benefit many scientific fields and technological applications, including biology, medicine, pharmacology, chemistry, materials science, physics, astrophysics, energy research, environmental research, electronics, nanotechnology, and photonics. ...
the xmm-newton wide-field survey in the cosmos field
... sources with greater than 100 net counts in the 0.3Y10 keV energy band and optical spectroscopic identification. We further remove one source that has been identified as a star (Trump et al. 2007). The final sample comprises 135 objects. We show the distribution of their net counts in the 0.3Y10 keV ...
... sources with greater than 100 net counts in the 0.3Y10 keV energy band and optical spectroscopic identification. We further remove one source that has been identified as a star (Trump et al. 2007). The final sample comprises 135 objects. We show the distribution of their net counts in the 0.3Y10 keV ...
pasta Jos´e A. Pons , Daniele Vigan`o and Nanda Rea
... rotational energy into electromagnetic radiation. The traditional wisdom that, when the star is not accreting matter from a companion star in a binary system, its main energy source comes from rotational energy, was shattered with the discovery of the so-called magnetars, a class that includes anoma ...
... rotational energy into electromagnetic radiation. The traditional wisdom that, when the star is not accreting matter from a companion star in a binary system, its main energy source comes from rotational energy, was shattered with the discovery of the so-called magnetars, a class that includes anoma ...
X-ray emission from young pulsar, PWN and SNRs
... • The fact that most of the X-ray filament tails point away from Sgr A* suggests that there exists a radial flow from GC. This flow (Galactic wind) blows the pulsar wind particles to the anti-GC direction and shapes the cometary morphology. These filaments thus represent PWNe in strong windy ...
... • The fact that most of the X-ray filament tails point away from Sgr A* suggests that there exists a radial flow from GC. This flow (Galactic wind) blows the pulsar wind particles to the anti-GC direction and shapes the cometary morphology. These filaments thus represent PWNe in strong windy ...
Deexcitation NSS 2004
... Rocks X-Ray Emission Library Test beams at BESSY labs have been undertaken in order to provide a set of X-Ray spectra from PSSL rocks that could be found rocky planets (Mars, Venus, Mercury) A total of 8 rocks have been irradiated and by now 5 of them have been ...
... Rocks X-Ray Emission Library Test beams at BESSY labs have been undertaken in order to provide a set of X-Ray spectra from PSSL rocks that could be found rocky planets (Mars, Venus, Mercury) A total of 8 rocks have been irradiated and by now 5 of them have been ...
CHANDRA on ,
... high-resolution spectrum taken for this source as well as the longest uninterrupted observation of any γ Cas analog. The Chandra light curve shows a high variability but its analysis fails to detect any coherent periodicity up to a frequency of 0.05 Hz. Hardness ratio versus intensity analyses demon ...
... high-resolution spectrum taken for this source as well as the longest uninterrupted observation of any γ Cas analog. The Chandra light curve shows a high variability but its analysis fails to detect any coherent periodicity up to a frequency of 0.05 Hz. Hardness ratio versus intensity analyses demon ...
History of X-ray astronomy
The history of X-ray astronomy begins in the 1920s, with interest in short wave communications for the U.S. Navy. This was soon followed by extensive study of the earth's ionosphere. By 1927, interest in the detection of X-ray and ultraviolet (UV) radiation at high altitudes inspired researchers to launch Goddard's rockets into the upper atmosphere to support theoretical studies and data gathering. The first successful rocket flight equipped with instrumentation able to detect solar ultraviolet radiation occurred in 1946. X-ray solar studies began in 1949. By 1973 a solar instrument package orbited on Skylab providing significant solar data.In 1965 the Goddard Space Flight Center program in X-ray astronomy was initiated with a series of balloon-borne experiments. In the 1970s this was followed by high altitude sounding rocket experiments, and that was followed by orbiting (satellite) observatories.The first rocket flight to successfully detect a cosmic source of X-ray emission was launched in 1962 by a group at American Science and Engineering (AS&E).X-ray wavelengths reveal information about the bodies (sources) that emit them.