Extrasolar Planet Studies:The Italian Contribution
... At first instance, 3 weeks of bright GTO time (plus additional time that will be persued through GO rounds) will be used to monitor 4 densely populated star fields towards the galactic disk at low declination. Cycle time will be approximately 8.5 minutes, with 20 sec. exposures - targeting about ~20 ...
... At first instance, 3 weeks of bright GTO time (plus additional time that will be persued through GO rounds) will be used to monitor 4 densely populated star fields towards the galactic disk at low declination. Cycle time will be approximately 8.5 minutes, with 20 sec. exposures - targeting about ~20 ...
Stars, Galaxies, and Beyond
... I have prepared this summary to assist in learning some of the materials relevant to the courses named. These 300–level (junior) college courses have provided a satisfying opportunity to take a more detailed but still manageable look at astronomy and astrophysics applying to space well beyond the so ...
... I have prepared this summary to assist in learning some of the materials relevant to the courses named. These 300–level (junior) college courses have provided a satisfying opportunity to take a more detailed but still manageable look at astronomy and astrophysics applying to space well beyond the so ...
THE HELIACAL RISE OF SIRIUS- Algorithm
... In the course of the last 5 years of observations in Seattle, in the period 2001-2005 I have seen that one and the same star does appear on the same date, provided it is brighter than +1.5 mag.. In comparison I have observed how stars around +3.0 mag. appeared, in 2005, 3 days later than they did in ...
... In the course of the last 5 years of observations in Seattle, in the period 2001-2005 I have seen that one and the same star does appear on the same date, provided it is brighter than +1.5 mag.. In comparison I have observed how stars around +3.0 mag. appeared, in 2005, 3 days later than they did in ...
- IRSA
... help to determine the uniqueness of our planetary system and will greatly improve the estimates of the frequency of other lifebearing planets in the universe. 3) To study ultraluminous galaxies and active galactic nuclei. By measuring the location of the silicate feature, the IRS will be able to me ...
... help to determine the uniqueness of our planetary system and will greatly improve the estimates of the frequency of other lifebearing planets in the universe. 3) To study ultraluminous galaxies and active galactic nuclei. By measuring the location of the silicate feature, the IRS will be able to me ...
NICMOS Coronagraphic Observations of 55 Cancri
... OTA spider vanes while demanding that the adjacent background at large radii remain zero. The sensitivity of the residual background to the PSF flux scaling is discussed by Weinberger et al. (1999), and we elaborate further here in §6. The resulting pair of PSF-subtracted images of 55 Cnc is shown i ...
... OTA spider vanes while demanding that the adjacent background at large radii remain zero. The sensitivity of the residual background to the PSF flux scaling is discussed by Weinberger et al. (1999), and we elaborate further here in §6. The resulting pair of PSF-subtracted images of 55 Cnc is shown i ...
Spitzer Spectroscopy of Circumstellar Disks in the 5 Myr Old Upper
... from 2006 September 14–19 and campaign 1085 from 2007 March 16–21, and one source ([PZ99]J161411.0-230536) was obtained from the FEPS Spitzer Legacy program as described by Carpenter et al. (2008). The following discussion describes the data reduction procedures for the 25 spectra obtained for this ...
... from 2006 September 14–19 and campaign 1085 from 2007 March 16–21, and one source ([PZ99]J161411.0-230536) was obtained from the FEPS Spitzer Legacy program as described by Carpenter et al. (2008). The following discussion describes the data reduction procedures for the 25 spectra obtained for this ...
Stargazing For Beginners: A Binocular Tour of the Southern Night Sky
... nebulae, and star clusters. It assumes you are equipped with nothing more than a simple pair of binoculars, and that you know nothing of astronomy or the layout of the night sky. The course is inspired by the 19th century book entitled Astronomy with an Opera Glass by Garrett Serviss, but has been c ...
... nebulae, and star clusters. It assumes you are equipped with nothing more than a simple pair of binoculars, and that you know nothing of astronomy or the layout of the night sky. The course is inspired by the 19th century book entitled Astronomy with an Opera Glass by Garrett Serviss, but has been c ...
ASTR 1010 Laboratory Introduction to Astronomy
... astronomy graduate students and faculty. Telescopes include 16-, 18-, and 24-inch Cassegrain reflectors, and a 10.5-inch aperture heliostat. In its teaching role, the Observatory is used by approximately 1500 undergraduate students each year to view celestial objects that might otherwise only be see ...
... astronomy graduate students and faculty. Telescopes include 16-, 18-, and 24-inch Cassegrain reflectors, and a 10.5-inch aperture heliostat. In its teaching role, the Observatory is used by approximately 1500 undergraduate students each year to view celestial objects that might otherwise only be see ...
Practical cosmology with the Local Volume galaxies
... constellation. According to Tully et al. (2008) this phenomena (the Local Velocity Anomaly) is caused by motion of the Local Sheet as a whole from the large Local Void towards the neighboring Leo cloud. Fig.2 presents the distribution of nearby galaxies in Supergalactic coordinates. The vector exten ...
... constellation. According to Tully et al. (2008) this phenomena (the Local Velocity Anomaly) is caused by motion of the Local Sheet as a whole from the large Local Void towards the neighboring Leo cloud. Fig.2 presents the distribution of nearby galaxies in Supergalactic coordinates. The vector exten ...
Open clusters in the Third Galactic Quadrant III. Alleged binary
... metal content used to compute color excesses and distance moduli. Despite the special care put in fitting all the potential cluster members, some sequences are not satisfactorily reproduced by one single isochrone, as said above, and a range of them has been indicated in each cluster of Table 4. Kno ...
... metal content used to compute color excesses and distance moduli. Despite the special care put in fitting all the potential cluster members, some sequences are not satisfactorily reproduced by one single isochrone, as said above, and a range of them has been indicated in each cluster of Table 4. Kno ...
Spectroscopic Atlas for Amateur Astronomers
... edition: “Atlas for Objective Prism Spectra” by Waltraut C. Seitter, 1975 [5]). This atlas, covering the spectral types from O5 to M2, is out of print today, but recently available as download [5]! Still based on photographic spectral strips it’s the only reviewed work, documenting most of the lines ...
... edition: “Atlas for Objective Prism Spectra” by Waltraut C. Seitter, 1975 [5]). This atlas, covering the spectral types from O5 to M2, is out of print today, but recently available as download [5]! Still based on photographic spectral strips it’s the only reviewed work, documenting most of the lines ...
Confirmation of Hostless Type Ia Supernovae Using Hubble Space
... Supernovae of Type Ia (SNe Ia) are the thermonuclear explosions of carbon-oxygen white dwarf (CO WD) stars, commonly used as cosmological standard candles although their progenitor scenario is not yet well understood (e.g., Howell 2011). Most likely, the WD is in a binary system with either another ...
... Supernovae of Type Ia (SNe Ia) are the thermonuclear explosions of carbon-oxygen white dwarf (CO WD) stars, commonly used as cosmological standard candles although their progenitor scenario is not yet well understood (e.g., Howell 2011). Most likely, the WD is in a binary system with either another ...
We Do Not Forget Johannes Kepler Introduction
... result was an orbit, which agrees with modern results so exactly that the comparison has to make allowance for secular changes in the orbit since Kepler's time. The work on Mars was essentially completed by 1605, but there were delays in getting the book published. Meanwhile, in response to concerns ...
... result was an orbit, which agrees with modern results so exactly that the comparison has to make allowance for secular changes in the orbit since Kepler's time. The work on Mars was essentially completed by 1605, but there were delays in getting the book published. Meanwhile, in response to concerns ...
Solar Math - GLORIA Project
... Stars come in many sizes, but their true appearances are impossible to see without special telescopes. The image to the left was taken by the Hubble Space telescope and resolves the red supergiant star Betelgeuse so that its surface can be just barely seen. Follow the number clues below to compare t ...
... Stars come in many sizes, but their true appearances are impossible to see without special telescopes. The image to the left was taken by the Hubble Space telescope and resolves the red supergiant star Betelgeuse so that its surface can be just barely seen. Follow the number clues below to compare t ...
the PDF - Montana State University
... conclude that the physical conditions conducive to a quasi-periodic magnetic activity cycle like the Sun’s are rare in stars of approximately the solar mass, and that the proper conditions may be restricted to a relatively narrow range of rotation rates. ...
... conclude that the physical conditions conducive to a quasi-periodic magnetic activity cycle like the Sun’s are rare in stars of approximately the solar mass, and that the proper conditions may be restricted to a relatively narrow range of rotation rates. ...
A spectroscopic investigation of the O
... renders our knowledge of massive stars still fragmentary. In addition, the distribution of orbital parameters allows us to give insight into other questions such as whether the binary fraction of massive stars can be related to the stellar density (Penny et al. 1993; García & Mermilliod 2001). The o ...
... renders our knowledge of massive stars still fragmentary. In addition, the distribution of orbital parameters allows us to give insight into other questions such as whether the binary fraction of massive stars can be related to the stellar density (Penny et al. 1993; García & Mermilliod 2001). The o ...
PH607lec08
... • When examined with sufficient resolution, 25% to more than 40% of E galaxies show features due to dust absorption. • The dust lanes seen in E galaxies imply that the absorbing material is distributed in rings or disks. Dust lanes may be aligned with either the major or minor axes, or they may be w ...
... • When examined with sufficient resolution, 25% to more than 40% of E galaxies show features due to dust absorption. • The dust lanes seen in E galaxies imply that the absorbing material is distributed in rings or disks. Dust lanes may be aligned with either the major or minor axes, or they may be w ...
An X-Ray, Optical and Infra-red study of High-Mass X
... First and foremost I would like to thank my supervisor, Malcolm Coe, for his continued guidance and support. His drive to obtain and exploit all manner of data has given me a wealth of information on which to base my thesis and sent me to some of the world’s most incredible places in the process. I ...
... First and foremost I would like to thank my supervisor, Malcolm Coe, for his continued guidance and support. His drive to obtain and exploit all manner of data has given me a wealth of information on which to base my thesis and sent me to some of the world’s most incredible places in the process. I ...
ZERODUR ® - Catalogue
... to 8 m in diameter. The thermal expansion coefficient variations are in the order of the detection limit of ± 1.2 · 10-9/K (95 %). The melting, casting and annealing procedures have been improved to establish continuous production, which reproduces the excellent quality that is needed to be able to ...
... to 8 m in diameter. The thermal expansion coefficient variations are in the order of the detection limit of ± 1.2 · 10-9/K (95 %). The melting, casting and annealing procedures have been improved to establish continuous production, which reproduces the excellent quality that is needed to be able to ...
Astronomy Astrophysics Gaia-ESO Survey: The analysis of high-resolution The
... available. Exactly the same analysis strategy that we applied to iDR2 is being applied to iDR3. For completeness, we also present the analysis of iDR1 in an Appendix. There, we discuss the main differences between the analysis implementation for these two iDRs. The first Gaia-ESO science verification ...
... available. Exactly the same analysis strategy that we applied to iDR2 is being applied to iDR3. For completeness, we also present the analysis of iDR1 in an Appendix. There, we discuss the main differences between the analysis implementation for these two iDRs. The first Gaia-ESO science verification ...
Gaia 1 and 2. A pair of new satellites of the Galaxy
... even here, a stellar overdensity corresponding to the candidate in question is noticeable. The object itself can be seen directly in the images from the infrared WISE survey (bottom row). The bottom panels of Figure 3 show the view of the ∼ 300 × 300 area around the overdensity as provided by the un ...
... even here, a stellar overdensity corresponding to the candidate in question is noticeable. The object itself can be seen directly in the images from the infrared WISE survey (bottom row). The bottom panels of Figure 3 show the view of the ∼ 300 × 300 area around the overdensity as provided by the un ...
The Alpha Centauri binary system
... λλ 5100, 5245, 5342, 5411, 5528, 5691, 5825, 6128 and 6242 Å, with spectral coverage of 90 Å each. The chemical species represented by spectral lines reasonably free from blending are Na I, Si I, Ca I, Sc I, Sc II, Ti I, Ti II,V I, Cr I, Cr II, Mn I, Fe I, Fe II, Co I, Ni I, Cu I, Y II, Ba II. Add ...
... λλ 5100, 5245, 5342, 5411, 5528, 5691, 5825, 6128 and 6242 Å, with spectral coverage of 90 Å each. The chemical species represented by spectral lines reasonably free from blending are Na I, Si I, Ca I, Sc I, Sc II, Ti I, Ti II,V I, Cr I, Cr II, Mn I, Fe I, Fe II, Co I, Ni I, Cu I, Y II, Ba II. Add ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.