Maximizing the ExoEarth Candidate Yield from a Future Direct
... weakly with mission lifetime. Therefore, spectral characterization time should not greatly impact the single-visit yield estimates from this study. Finally, we observe each star only once and ignore revisits in this study. Revisits can both increase and decrease mission yield. In the event that an e ...
... weakly with mission lifetime. Therefore, spectral characterization time should not greatly impact the single-visit yield estimates from this study. Finally, we observe each star only once and ignore revisits in this study. Revisits can both increase and decrease mission yield. In the event that an e ...
ESA ACHIEVEMENTS
... 1972, proving that ESRO could compete with the major space powers and could manage important industrial contracts. By this time, there had been a fundamental change in ESRO’s aims. Its Council resolved in December 1971 to include applications satellites, namely the Orbital Test Satellite for telecom ...
... 1972, proving that ESRO could compete with the major space powers and could manage important industrial contracts. By this time, there had been a fundamental change in ESRO’s aims. Its Council resolved in December 1971 to include applications satellites, namely the Orbital Test Satellite for telecom ...
Planet Hunters Education Guide
... the unusual, unlike computers, which will only identify exactly what they have been asked to. This can lead to unexpected discoveries, like in the case of the Galaxy Zoo ‘Green Peas.’ Volunteers were able to identify an entirely new type of galaxy that astronomers didn’t know existed. This galaxy lo ...
... the unusual, unlike computers, which will only identify exactly what they have been asked to. This can lead to unexpected discoveries, like in the case of the Galaxy Zoo ‘Green Peas.’ Volunteers were able to identify an entirely new type of galaxy that astronomers didn’t know existed. This galaxy lo ...
implication on the mass and
... The solid line evolves as (1+z)3.9 and represents the best fit of the total IR luminosity density at 0
... The solid line evolves as (1+z)3.9 and represents the best fit of the total IR luminosity density at 0
Migrating Dust Particles
... size they drifted towards the Sun. This material was later accreted to planetesimals which are held together by self-gravity. As the planetesimals extend their gravitational range they have a run-away growth towards becoming planets. In this step the planetesimals grow more the larger they get. This ...
... size they drifted towards the Sun. This material was later accreted to planetesimals which are held together by self-gravity. As the planetesimals extend their gravitational range they have a run-away growth towards becoming planets. In this step the planetesimals grow more the larger they get. This ...
Discovery of a Dusty Ring in the Coalsack - Harvard
... Subject headings: molecular clouds–dark nebulae–ISM: dust, extinction and globules ...
... Subject headings: molecular clouds–dark nebulae–ISM: dust, extinction and globules ...
Starter Edition Handbook
... sky objects (other than star clusters) will require a new kind of “looking.” A deep sky object is a celestial object that is not a single star and lies beyond our own solar system—beyond the family of the sun. These objects are exotic by nature, but often disappointing to look at in the telescope. W ...
... sky objects (other than star clusters) will require a new kind of “looking.” A deep sky object is a celestial object that is not a single star and lies beyond our own solar system—beyond the family of the sun. These objects are exotic by nature, but often disappointing to look at in the telescope. W ...
Trapezium Fracture
... back across the immense gulf of space to the last remnants of our own solar system and begin to understand the ultimate of their own world? Perhaps these beings will not have evolved on the Orion home worlds at all, but travelled to them from another distant place, and when they peer curiously at ou ...
... back across the immense gulf of space to the last remnants of our own solar system and begin to understand the ultimate of their own world? Perhaps these beings will not have evolved on the Orion home worlds at all, but travelled to them from another distant place, and when they peer curiously at ou ...
Red supergiants and the past of Cygnus OB2
... (e.g. Messineo et al. 2014; Davies et al. 2007; Clark et al. 2009; Mengel & Tacconi-Garman 2007). At the same time, their presence and characteristics would set relevant lower limits on the past massive star formation activity of the region. In this paper we report on seven red supergiants located w ...
... (e.g. Messineo et al. 2014; Davies et al. 2007; Clark et al. 2009; Mengel & Tacconi-Garman 2007). At the same time, their presence and characteristics would set relevant lower limits on the past massive star formation activity of the region. In this paper we report on seven red supergiants located w ...
Earth Centered Universe Pro V6.0
... The Earth Centered Universe (ECU) software is protected by the copyright laws of Canada and the United States of America, as well as by the copyright laws of many other countries pursuant to international treaties. The ECU software and this manual are Copyright © 19922011 by David J. Lane (the owner ...
... The Earth Centered Universe (ECU) software is protected by the copyright laws of Canada and the United States of America, as well as by the copyright laws of many other countries pursuant to international treaties. The ECU software and this manual are Copyright © 19922011 by David J. Lane (the owner ...
Detection and Discovery of Near-Earth Asteroids by the LINEAR
... Lincoln Near-Earth Asteroid Research Program The Lincoln Near-Earth Asteroid Research program (LINEAR) began regular operations in March 1998, just as NASA formally embraced the task of cataloging 90% of the largest NEAs, and quickly became the most productive asteroid survey program in history. LIN ...
... Lincoln Near-Earth Asteroid Research Program The Lincoln Near-Earth Asteroid Research program (LINEAR) began regular operations in March 1998, just as NASA formally embraced the task of cataloging 90% of the largest NEAs, and quickly became the most productive asteroid survey program in history. LIN ...
to - NexStar Resource Site
... Although Galileo was the first to observe it with a telescope in 1610, Saturn has been known since prehistoric times. Up to 1977 Saturn was believed to be the only planet with a ring system. It was later discovered that all of the gas planets had ring systems, albeit faint, of their own. Saturn is a ...
... Although Galileo was the first to observe it with a telescope in 1610, Saturn has been known since prehistoric times. Up to 1977 Saturn was believed to be the only planet with a ring system. It was later discovered that all of the gas planets had ring systems, albeit faint, of their own. Saturn is a ...
21 -26 August University of Exeter
... Investigating the dynamics of the interstellar medium (ISM) is key to gaining insight into the formation of starforming filaments in molecular clouds (MCs). A plethora of numerical and analytical models associate the origin of this filamentary structure to the interplay between self-gravity and magn ...
... Investigating the dynamics of the interstellar medium (ISM) is key to gaining insight into the formation of starforming filaments in molecular clouds (MCs). A plethora of numerical and analytical models associate the origin of this filamentary structure to the interplay between self-gravity and magn ...
- IRSA
... outside and ionizing radiation shielding. The SIRTF helium bath temperature will be less than 1.8K. Therefore, supplemental heating is needed to raise the IRS detector arrays to their required operating temperatures. This function is provided by a small heater and temperature sensor co-mounted with ...
... outside and ionizing radiation shielding. The SIRTF helium bath temperature will be less than 1.8K. Therefore, supplemental heating is needed to raise the IRS detector arrays to their required operating temperatures. This function is provided by a small heater and temperature sensor co-mounted with ...
Outline Thesis – so far
... My thesis consists of two parts. In Part I, I describe my contributions to the laser guide star adaptive optics facility at the Large Binocular Telescope, the Advanced Rayleigh guided Ground layer adaptive Optics System , ARGOS. I investigate the effect of scattered light from propagating the laser ...
... My thesis consists of two parts. In Part I, I describe my contributions to the laser guide star adaptive optics facility at the Large Binocular Telescope, the Advanced Rayleigh guided Ground layer adaptive Optics System , ARGOS. I investigate the effect of scattered light from propagating the laser ...
9 The Clearing of Protoplanetary Disks and of the Protosolar Nebula
... millimeter wavelengths. The combination of spatially resolved disk emission and the slope of the SED at these wavelengths can be used to infer the size distribution of grains in the outer disk (Testi et al. 2003). This technique has shown that several disks around low- and intermediate-mass stars fo ...
... millimeter wavelengths. The combination of spatially resolved disk emission and the slope of the SED at these wavelengths can be used to infer the size distribution of grains in the outer disk (Testi et al. 2003). This technique has shown that several disks around low- and intermediate-mass stars fo ...
Annual Report 2006/2007
... when the Universe was less than 5% of its present age. The theme of the NOVA Program is to unravel the history of the universe and to further develop the understanding of the life cycle of stars and galaxies. The NOVA research program concentrates on the following three interconnected areas: • Netw ...
... when the Universe was less than 5% of its present age. The theme of the NOVA Program is to unravel the history of the universe and to further develop the understanding of the life cycle of stars and galaxies. The NOVA research program concentrates on the following three interconnected areas: • Netw ...
GALAXIES 626
... The α-enhancement indicates that star formation in this inner disk/bulge region proceeded rapidly. The bulge structure may be younger than its stars. ...
... The α-enhancement indicates that star formation in this inner disk/bulge region proceeded rapidly. The bulge structure may be younger than its stars. ...
Hint of a transiting extended atmosphere on 55 Cancri b⋆
... and irradiation. These questions can be addressed by Lyman-α transit observations of the extended hydrogen planetary atmospheres, complemented by contemporaneous measurements of the stellar X-ray flux. In fact, planet “e” has been detected in transit, suggesting the system is seen nearly edge-on. Ye ...
... and irradiation. These questions can be addressed by Lyman-α transit observations of the extended hydrogen planetary atmospheres, complemented by contemporaneous measurements of the stellar X-ray flux. In fact, planet “e” has been detected in transit, suggesting the system is seen nearly edge-on. Ye ...
Optical Fabrication and Testing - National Optical Astronomy
... than the 6-10-meter current generation Larger ground-based telescope will be needed to: – Understand the origin and formation of • Large scale structure in the Universe • Galaxies • Stars • Planetary systems – Complement other planned observing facilities • NGST • ALMA • SKA AURA New Initiatives Off ...
... than the 6-10-meter current generation Larger ground-based telescope will be needed to: – Understand the origin and formation of • Large scale structure in the Universe • Galaxies • Stars • Planetary systems – Complement other planned observing facilities • NGST • ALMA • SKA AURA New Initiatives Off ...
Full Presentation Here
... • IACT do not see the -ray hitting the atmosphere but the erenkov light from the electro-magnetic shower developed in the atmosphere (calorimeter with atmosphere as active material) The light is collected and focused on the camera forming and image of the electro-magnetic shower. The image may com ...
... • IACT do not see the -ray hitting the atmosphere but the erenkov light from the electro-magnetic shower developed in the atmosphere (calorimeter with atmosphere as active material) The light is collected and focused on the camera forming and image of the electro-magnetic shower. The image may com ...
diy astronomy - American Museum of Natural History
... © 2013 American Museum of Natural History. All Rights Reserved. ...
... © 2013 American Museum of Natural History. All Rights Reserved. ...
Astronomical imaging using ground
... common to all field points. It has been found empirically at various sites that typically half to two-thirds of the atmospheric turbulence lies in this ground layer1-9, so when the technique is applied, the natural seeing will improve substantially over a large field. This will be of particular valu ...
... common to all field points. It has been found empirically at various sites that typically half to two-thirds of the atmospheric turbulence lies in this ground layer1-9, so when the technique is applied, the natural seeing will improve substantially over a large field. This will be of particular valu ...
neutron star
... We observe the star–gas–star cycle operating in Milky Way’s disk using many different wavelengths of light. Tuesday, March 5, 13 ...
... We observe the star–gas–star cycle operating in Milky Way’s disk using many different wavelengths of light. Tuesday, March 5, 13 ...
IAC_L2_thindisk
... AVR for our subgiant sample, drawn from the GCS The GCS : magnitude-limited and kinematically unbiased sample of 13,500 FGK HD-stars, with Strömgren photometry and accurate (< 1 km/s) radial velocities. Most stars have Mv between 0 and +7. GCS provides estimates of Te, MV, [Fe/H]: we used them to s ...
... AVR for our subgiant sample, drawn from the GCS The GCS : magnitude-limited and kinematically unbiased sample of 13,500 FGK HD-stars, with Strömgren photometry and accurate (< 1 km/s) radial velocities. Most stars have Mv between 0 and +7. GCS provides estimates of Te, MV, [Fe/H]: we used them to s ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.