“White Hot” Star Lab
... b) Draw a rough copy of the spectrum you see onto your data table. Show sharp and fuzzy lines, bright and faint lines. c) Color in the spectrum in the appropriate places. 2. You will be shown a mystery gas. Compare the spectrum of the gas with those on your data table. What is the mystery gas? 3. Ob ...
... b) Draw a rough copy of the spectrum you see onto your data table. Show sharp and fuzzy lines, bright and faint lines. c) Color in the spectrum in the appropriate places. 2. You will be shown a mystery gas. Compare the spectrum of the gas with those on your data table. What is the mystery gas? 3. Ob ...
Millisecond Pulsar Binaries at Transition
... than 10 yrs since the interacting activity of the binary, the mass transfer and disk formation may occur again, providing a good source for studying the disk evolution and its interaction with the pulsar wind, and disk disruption processes by the pulsar wind and Gamma-rays emitted from the pulsar ...
... than 10 yrs since the interacting activity of the binary, the mass transfer and disk formation may occur again, providing a good source for studying the disk evolution and its interaction with the pulsar wind, and disk disruption processes by the pulsar wind and Gamma-rays emitted from the pulsar ...
Scientific Justification
... Photometry (RI, JHK) as well as low-resolution spectroscopy is available for all objects, either from our own work or the literature. These data allow us to construct the energy distribution for each underlying photosphere using atmosphere models, and project it into the mid-infrared (see Figure 1 f ...
... Photometry (RI, JHK) as well as low-resolution spectroscopy is available for all objects, either from our own work or the literature. These data allow us to construct the energy distribution for each underlying photosphere using atmosphere models, and project it into the mid-infrared (see Figure 1 f ...
Chapter 17--Star Stuff
... The length of time from the formation of a protostar to the birth of a main-sequence star depends on the star’s mass. Massive stars do everything faster. The contraction of a high-mass protostar into a main-sequence star may take only a million years or less. A star like our Sun takes about 50 milli ...
... The length of time from the formation of a protostar to the birth of a main-sequence star depends on the star’s mass. Massive stars do everything faster. The contraction of a high-mass protostar into a main-sequence star may take only a million years or less. A star like our Sun takes about 50 milli ...
A Human-Powered Orrery: Connecting Learners with the Night Sky*
... available (See Fig. 3). The largest, and heaviest uses aluminum pie pans (See Fig. 3 and Fig. 7, page 11). This can take as long as 45 minutes to set up, similar to the one in the YouTube video. We have used this only when we have extra time such as an overnight with lots of help. However, this mo ...
... available (See Fig. 3). The largest, and heaviest uses aluminum pie pans (See Fig. 3 and Fig. 7, page 11). This can take as long as 45 minutes to set up, similar to the one in the YouTube video. We have used this only when we have extra time such as an overnight with lots of help. However, this mo ...
Astr 102 Lec 6: Basic Properties of Stars
... A star or galaxy will appear bright if it’s intrinsically brighter or if it’s closer. ...
... A star or galaxy will appear bright if it’s intrinsically brighter or if it’s closer. ...
CHAPTER 1 The Formation and Structure of Stars
... a temperature of only 10 K, the average hydrogen atom moves about 0.5 km/s (1,100 mph). – This thermal motion would make the cloud drift apart if gravity were too weak to hold it together. ...
... a temperature of only 10 K, the average hydrogen atom moves about 0.5 km/s (1,100 mph). – This thermal motion would make the cloud drift apart if gravity were too weak to hold it together. ...
Super-Earth and Sub-Neptune Exoplanets: a First Look from the
... privilege to work with him for these five years. I thank Jonathan Irwin for so many reasons: for building a truly magnificent observatory, for delightful and productive scientific conversations, for thoughtful comments on all aspects of my work, for guiding my voice as a scientist, for magnificent l ...
... privilege to work with him for these five years. I thank Jonathan Irwin for so many reasons: for building a truly magnificent observatory, for delightful and productive scientific conversations, for thoughtful comments on all aspects of my work, for guiding my voice as a scientist, for magnificent l ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... based on their light curves, that is, their pattern of rising and falling brightness. Later, they found these types actually corresponded to different physical circumstances triggering the explosions. Even those types have fine distinctions based on their spectra, giving rise to the categorization o ...
... based on their light curves, that is, their pattern of rising and falling brightness. Later, they found these types actually corresponded to different physical circumstances triggering the explosions. Even those types have fine distinctions based on their spectra, giving rise to the categorization o ...
The Age and Progenitor Mass of Sirius B
... The Sirius system is the fifth or sixth nearest stellar system to the Sun1 , and certainly is one of the best studied binary systems including a white dwarf component. One does not want to employ a white dwarf in a binary close enough that interactions might have affected the mass loss phases in the ...
... The Sirius system is the fifth or sixth nearest stellar system to the Sun1 , and certainly is one of the best studied binary systems including a white dwarf component. One does not want to employ a white dwarf in a binary close enough that interactions might have affected the mass loss phases in the ...
The figure below shows what scientists over 1000 years ago thought
... Give one way that the historical model of the solar system shown in the figure above is different from what we now know about the solar system. ...
... Give one way that the historical model of the solar system shown in the figure above is different from what we now know about the solar system. ...
PPT - Chandra X-Ray Observatory
... accretion is prevented for LB1919 since its L>1L. Instead, massloss rate of 10-18 M/yr will be sustained • Convection not expected in LB1919 • Rotation could lead to meridional mixing, however, WDs are generally slow rotators. In particular, LB1919 shows sharp Lyman line cores (FUSE), ruling out h ...
... accretion is prevented for LB1919 since its L>1L. Instead, massloss rate of 10-18 M/yr will be sustained • Convection not expected in LB1919 • Rotation could lead to meridional mixing, however, WDs are generally slow rotators. In particular, LB1919 shows sharp Lyman line cores (FUSE), ruling out h ...
ASTRO-114--Lecture 38-
... astronomers were able to nail down the entire scale. Because what they said was first to sixth is a change of five numbers. First to second is one change, second to third is two, third to fourth is three, fourth to fifth is four, and fifth to sixth is five. So a change of five numbers on the magnitu ...
... astronomers were able to nail down the entire scale. Because what they said was first to sixth is a change of five numbers. First to second is one change, second to third is two, third to fourth is three, fourth to fifth is four, and fifth to sixth is five. So a change of five numbers on the magnitu ...
preprint, pdf version - LESIA
... on the sky. Given the astrometric uncertainties in the star positions and the error in the TNO ephemeris, larger apparent diameters correspond to a higher probability of a successful prediction. Another selection criteria was the star field. We preferred to select TNOs currently orbiting dense star ...
... on the sky. Given the astrometric uncertainties in the star positions and the error in the TNO ephemeris, larger apparent diameters correspond to a higher probability of a successful prediction. Another selection criteria was the star field. We preferred to select TNOs currently orbiting dense star ...
400 YEARS OF THE TELESCOPE
... Circle showing a view through a simple refractor as if the audience were looking through it. As it pans around it shows a view of the Moon, Jupiter with its moons, and the Milky Way. Fly through the telescope seeing two pieces of glass coming together in front of a fuzzy title, as they line up the t ...
... Circle showing a view through a simple refractor as if the audience were looking through it. As it pans around it shows a view of the Moon, Jupiter with its moons, and the Milky Way. Fly through the telescope seeing two pieces of glass coming together in front of a fuzzy title, as they line up the t ...
astro-ph/0303282 PDF
... observed. Conditions were excellent and photometric for the December 1 observations, but somewhat non-photometric (estimated at ~1 magnitude extinction) during the December 21 observations covering the northern field. Vega was observed in February 2002 (see Table 2.) Since the angular extent of the ...
... observed. Conditions were excellent and photometric for the December 1 observations, but somewhat non-photometric (estimated at ~1 magnitude extinction) during the December 21 observations covering the northern field. Vega was observed in February 2002 (see Table 2.) Since the angular extent of the ...
EM spectrum telescopes,HR star info-domenico
... Temp (color or spectral class) vs Absolute magnitude (Luminosity) Absolute magnitude – brightness based on being the same distance away from each star Apparent magnitude – brightness from Earth- all stars are different distances away ...
... Temp (color or spectral class) vs Absolute magnitude (Luminosity) Absolute magnitude – brightness based on being the same distance away from each star Apparent magnitude – brightness from Earth- all stars are different distances away ...
FIRST STELLAR ABUNDANCES IN THE DWARF IRREGULAR
... The analysis of bright nebular emission lines of H II regions has been the most frequent approach to modeling chemical evolution of more distant galaxies to date (Matteucci & Tosi 1985). So far, only a very limited number of elements can be examined and quantified when using this approach. The chemi ...
... The analysis of bright nebular emission lines of H II regions has been the most frequent approach to modeling chemical evolution of more distant galaxies to date (Matteucci & Tosi 1985). So far, only a very limited number of elements can be examined and quantified when using this approach. The chemi ...
Black Holes in Binary Systems and Galaxy Nuclei
... distribution of NS and BH can be suggested (Bailyn et al., 1998; Cherepashchuk, 1998). In this range (2 – 4) MSun the number of NS and BH discovered in binary systems up to now is close to zero. It can be shown that this gap is not due to observational selection effects (Cherepashchuk, 2001, 2003; Ö ...
... distribution of NS and BH can be suggested (Bailyn et al., 1998; Cherepashchuk, 1998). In this range (2 – 4) MSun the number of NS and BH discovered in binary systems up to now is close to zero. It can be shown that this gap is not due to observational selection effects (Cherepashchuk, 2001, 2003; Ö ...
The Evening Sky Map
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
Observing Orion
... UHC filter in front of one objective of the binoculars and closed the other eye. This did help the contrast somewhat, but this is still a low surface brightness object under any conditions. Moving up in aperture to a 4" f/6 RFT refractor shows it as pretty faint, very large and very, very elongated. ...
... UHC filter in front of one objective of the binoculars and closed the other eye. This did help the contrast somewhat, but this is still a low surface brightness object under any conditions. Moving up in aperture to a 4" f/6 RFT refractor shows it as pretty faint, very large and very, very elongated. ...