Astronomy Laboratory Manual
... You won't want to get a star atlas like Wil Tirion's "Sky Atlas 2000"; It's way too detailed. Good places to start are the monthly all-sky star maps that appear in "Astronomy" or "Sky & Telescope" magazines. You can also download a free monthly star map from Skymaps.com. Those will help you pick off ...
... You won't want to get a star atlas like Wil Tirion's "Sky Atlas 2000"; It's way too detailed. Good places to start are the monthly all-sky star maps that appear in "Astronomy" or "Sky & Telescope" magazines. You can also download a free monthly star map from Skymaps.com. Those will help you pick off ...
Horace Welcome Babcock - National Academy of Sciences
... myriads of unresolved stars. Additionally, he observed five faint nebulosities identified by Mayall in the outer reaches of M31, where starlight is too weak to measure. We now recognize these wisps as H II regions similar to the Orion Nebula located nearby in our Milky Way Galaxy. They could provide ...
... myriads of unresolved stars. Additionally, he observed five faint nebulosities identified by Mayall in the outer reaches of M31, where starlight is too weak to measure. We now recognize these wisps as H II regions similar to the Orion Nebula located nearby in our Milky Way Galaxy. They could provide ...
2 Galaxy morphology and classification
... Also called lenticular galaxies (due to their lens-like appearance when see edge-on), S0 galaxies are more flattened than elliptical galaxies, and have a noticeable disk. However, they show no evidence of gas, spiral arms, star formation or young stellar populations. Many S0 galaxies have visible du ...
... Also called lenticular galaxies (due to their lens-like appearance when see edge-on), S0 galaxies are more flattened than elliptical galaxies, and have a noticeable disk. However, they show no evidence of gas, spiral arms, star formation or young stellar populations. Many S0 galaxies have visible du ...
A cold detached dust envelope around an oxygen-rich Mira
... order to investigate the spatial structure around R Hya. The 60 and 100 µm images of R Hya are shown in Fig. 2a and b, respectively. The 60 µm image (Fig. 2a) shows a definite component of the extended emission around R Hya with an effective spatial resolution about 1 arc minute. The extended compon ...
... order to investigate the spatial structure around R Hya. The 60 and 100 µm images of R Hya are shown in Fig. 2a and b, respectively. The 60 µm image (Fig. 2a) shows a definite component of the extended emission around R Hya with an effective spatial resolution about 1 arc minute. The extended compon ...
Vireo Manual - Gettysburg College
... plus additional data on 24 thousand galaxies, 2269 quasi-stellar objects and 558 pulsars. In addition, VIREO data files contain the orbital elements of about 29 thousand asteroids. When used with a broad-band internet connection, VIREO also accesses the NOMAD catalog from the US Naval Observatory on ...
... plus additional data on 24 thousand galaxies, 2269 quasi-stellar objects and 558 pulsars. In addition, VIREO data files contain the orbital elements of about 29 thousand asteroids. When used with a broad-band internet connection, VIREO also accesses the NOMAD catalog from the US Naval Observatory on ...
THE PERIOD OF ROTATION OF THE SUN
... plus additional data on 24 thousand galaxies, 2269 quasi-stellar objects and 558 pulsars. In addition, VIREO data files contain the orbital elements of about 29 thousand asteroids. When used with a broad-band internet connection, VIREO also accesses the NOMAD catalog from the US Naval Observatory on ...
... plus additional data on 24 thousand galaxies, 2269 quasi-stellar objects and 558 pulsars. In addition, VIREO data files contain the orbital elements of about 29 thousand asteroids. When used with a broad-band internet connection, VIREO also accesses the NOMAD catalog from the US Naval Observatory on ...
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... This document describes the Palomar Observatory DBSP guider control software. The DBSP instrument is a dual channel spectrograph that simultaneously measures spectra in both the blue and red portions of t ...
... This document describes the Palomar Observatory DBSP guider control software. The DBSP instrument is a dual channel spectrograph that simultaneously measures spectra in both the blue and red portions of t ...
Article PDF - IOPscience
... objects (CSOs) taken with the Infrared Spectrograph on the Spitzer Space Telescope. The hosts of these young, powerful radio galaxies show significant diversity in their mid-IR spectra. This includes multiple atomic fine-structure lines, H2 gas, polycyclic aromatic hydrocarbon (PAH) emission, warm d ...
... objects (CSOs) taken with the Infrared Spectrograph on the Spitzer Space Telescope. The hosts of these young, powerful radio galaxies show significant diversity in their mid-IR spectra. This includes multiple atomic fine-structure lines, H2 gas, polycyclic aromatic hydrocarbon (PAH) emission, warm d ...
Sample pages 1 PDF
... Assuming you’re using a low-powered eyepiece centered on the core of the Andromeda Galaxy, then M32 should be easily visible as a near-spherical blob of light towards the edge of the field of view, 22 arcminutes away from the center of the Andromeda Galaxy. M32 is surprisingly massive for its size a ...
... Assuming you’re using a low-powered eyepiece centered on the core of the Andromeda Galaxy, then M32 should be easily visible as a near-spherical blob of light towards the edge of the field of view, 22 arcminutes away from the center of the Andromeda Galaxy. M32 is surprisingly massive for its size a ...
Compartive Planetology I: Our Solar. System
... ble Jupiter. (Jove was another name for the Roman god Jupiter.) An attempt to land a spacecraft on the surface of any of the Jo vian planets would be futile, because the materials of which these planets are made are mostly gaseous or liquid. The visible “surface” features of a Jovian planet are actu ...
... ble Jupiter. (Jove was another name for the Roman god Jupiter.) An attempt to land a spacecraft on the surface of any of the Jo vian planets would be futile, because the materials of which these planets are made are mostly gaseous or liquid. The visible “surface” features of a Jovian planet are actu ...
Abstracts - Physics of Evolved Stars 2015
... star becomes entirely enshrouded by a dense, dusty superwind. Before reaching such high massloss rates, these stars go through a phase of a lower mass-loss rate of at most a few times 10^-6 solar masses per year. Evolutionary models suggest that this phase does not last much longer than 10^5 years, ...
... star becomes entirely enshrouded by a dense, dusty superwind. Before reaching such high massloss rates, these stars go through a phase of a lower mass-loss rate of at most a few times 10^-6 solar masses per year. Evolutionary models suggest that this phase does not last much longer than 10^5 years, ...
The new X-ray universe
... the Chandra data are in good agreement with the predictions from numerical simulations. The best-fit X-ray mass models matched independent results from gravitational lensing studies and, where available, optical measurements of the galaxy velocity dispersions in the clusters (figure 8). Using the Ch ...
... the Chandra data are in good agreement with the predictions from numerical simulations. The best-fit X-ray mass models matched independent results from gravitational lensing studies and, where available, optical measurements of the galaxy velocity dispersions in the clusters (figure 8). Using the Ch ...
8-4.9 - S2TEM Centers SC
... Some incorrect believes children often hold include but are not limited to: The planets are relatively similar in size to the Sun and are relatively close in distance to one another. (The diameters of the planets are vastly different. The distances between the last five planets are much greater th ...
... Some incorrect believes children often hold include but are not limited to: The planets are relatively similar in size to the Sun and are relatively close in distance to one another. (The diameters of the planets are vastly different. The distances between the last five planets are much greater th ...
PPT - University of Waterloo
... medium resolution spectroscopy in 2'x2' • PACS: spectroscopy with velocity resolution of 100-250 km/s and 1300-3000 km/s coverage or imaging with two 25x16 arrays at 80-130 and 130-210 μm simultaneously • HIFI: very high spectral resolution heterodyne spectroscopy spanning 480-1250 and 1410-1910 GHz ...
... medium resolution spectroscopy in 2'x2' • PACS: spectroscopy with velocity resolution of 100-250 km/s and 1300-3000 km/s coverage or imaging with two 25x16 arrays at 80-130 and 130-210 μm simultaneously • HIFI: very high spectral resolution heterodyne spectroscopy spanning 480-1250 and 1410-1910 GHz ...
The Circumstellar Environments of Young Stars at AU Scales
... single-baseline). The main characteristics of current facilities involved in these studies are summarized in Table 1. Interferometer data, even with sparse spatial frequency coverage, provides direct constraints about source geometry and thus contains some of the power of direct imaging. However, wi ...
... single-baseline). The main characteristics of current facilities involved in these studies are summarized in Table 1. Interferometer data, even with sparse spatial frequency coverage, provides direct constraints about source geometry and thus contains some of the power of direct imaging. However, wi ...
VIRUS Instrument Collimator Assembly
... participation from the Ludwig-Maximilians-Universität München, Max-Planck-Institut für Extraterrestriche-Physik (MPE), Leibniz-Institut für Astrophysik Potsdam (AIP), Texas A&M University, Pennsylvania State University, Institut für Astrophysik Göttingen (IAG), University of Oxford and Max-Planck-In ...
... participation from the Ludwig-Maximilians-Universität München, Max-Planck-Institut für Extraterrestriche-Physik (MPE), Leibniz-Institut für Astrophysik Potsdam (AIP), Texas A&M University, Pennsylvania State University, Institut für Astrophysik Göttingen (IAG), University of Oxford and Max-Planck-In ...
Astronomy Chapter 17 – Galaxies A. Main Ideas 1. Discovering
... ordinary single star can be so luminous. No ordinary group of stars could be packed into so small a region. It is possible that the cores of active galaxies contain truly huge black holes about the size of the Earth’s orbit around the Sun and having the mass of a hundred million or more Suns. 5. Pro ...
... ordinary single star can be so luminous. No ordinary group of stars could be packed into so small a region. It is possible that the cores of active galaxies contain truly huge black holes about the size of the Earth’s orbit around the Sun and having the mass of a hundred million or more Suns. 5. Pro ...
Observing the Planet Venus Teacher`s Guide
... an important discovery because as the videoconference facilitator will demonstrate, for us to see an entire cycle of phases, Venus must orbit the Sun. Your students have begun to make the same gr ...
... an important discovery because as the videoconference facilitator will demonstrate, for us to see an entire cycle of phases, Venus must orbit the Sun. Your students have begun to make the same gr ...
ALFALFA H-alpha: The Star-Formation-Rate Density
... above the noise level in standard optical images, the same flux distributed over more pixels appears as noise. Space-based surveys in both the UV and far infrared (FIR) bands have also been used to measure star formation. NASA’s GALEX mission takes images in the UV while the Spitzer Space Telescope ...
... above the noise level in standard optical images, the same flux distributed over more pixels appears as noise. Space-based surveys in both the UV and far infrared (FIR) bands have also been used to measure star formation. NASA’s GALEX mission takes images in the UV while the Spitzer Space Telescope ...
Cataclysmic Cosmic Events and How to Observe Them www.springer.com/series/5338
... brighter variable stars were monitored, but photography was in its infancy and digital imaging lay a century in the future. Today, at the start of the twenty-first century, amateurs are better equipped than any professionals of the mid-twentieth century, let alone the nineteenth. An amateur equipped ...
... brighter variable stars were monitored, but photography was in its infancy and digital imaging lay a century in the future. Today, at the start of the twenty-first century, amateurs are better equipped than any professionals of the mid-twentieth century, let alone the nineteenth. An amateur equipped ...
Evolution of the Highest Redshift Quasars
... – Only BHs with ideal growth conditions (negative feedback not important) can grow to billion Msun at z~6 – Low BH fraction in halos at the high luminosity (mass) end • Steep quasar luminosity function? ...
... – Only BHs with ideal growth conditions (negative feedback not important) can grow to billion Msun at z~6 – Low BH fraction in halos at the high luminosity (mass) end • Steep quasar luminosity function? ...
The universe of the coming ALMA revolution
... The colors of light that our eyes can detect are but a thin sliver of the entire spectrum. The universe emits light in every invisible color, from radio waves to gamma rays, and studies conducted within each band of the spectrum contribute uniquely to our understanding. Only now has technology cau ...
... The colors of light that our eyes can detect are but a thin sliver of the entire spectrum. The universe emits light in every invisible color, from radio waves to gamma rays, and studies conducted within each band of the spectrum contribute uniquely to our understanding. Only now has technology cau ...
THE PRIMORDIAL HELIUM ABUNDANCE Manuel Peimbert
... the study of cosmology and the chemical evolution of galaxies. Over the years the increase in the accuracy of the helium abundance by mass, Y, of different objects and in the accuracy of the predictions of the primordial helium abundance by unit mass, YP (also known as the primordial helium mass fra ...
... the study of cosmology and the chemical evolution of galaxies. Over the years the increase in the accuracy of the helium abundance by mass, Y, of different objects and in the accuracy of the predictions of the primordial helium abundance by unit mass, YP (also known as the primordial helium mass fra ...
Observations, Modeling and Theory of Debris Disks
... (≥ 60 µm), corresponding to cold (∼ at 10s to 100s of AU. The debris disks detected with IRAS were Kuiper belt analogues seen around ∼ 15% of main sequence stars (Aumann 1985). Rhee et al. (2007) have reanalyzed IRAS data and found the detection rate around nearby A stars to be 20%. In the past deca ...
... (≥ 60 µm), corresponding to cold (∼ at 10s to 100s of AU. The debris disks detected with IRAS were Kuiper belt analogues seen around ∼ 15% of main sequence stars (Aumann 1985). Rhee et al. (2007) have reanalyzed IRAS data and found the detection rate around nearby A stars to be 20%. In the past deca ...
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.