astrophysics topics for research

Thus by measuring both the kinematics and the ages of the stellar population we are able to deduce the evolutionary history of galaxies. mid-term exam. We are preparing an observing project for the class which will used the Parks Road M Bureau, K Blundell, G Cotter, G Dalton, R Davies, I Hook, R Johnson, L Miller, S Rawlings, N Thatte. This is evidently asymmetric; for example, the infrared light distribution is brighter towards positive longitudes than negative longitudes. Both sub-departments are situated close to each other on the Keble Road site, close to the centre of Oxford and the University Parks. The interstellar medium is the repository for recycling material between tenuous, diffuse regions and dense molecular clouds where a large fraction can be cpnverted into stars where it is locked up for long periods before being ejected back into the ISM through stellar winds or other outflows. List of Interesting Physics Research Project Topics. Synthesis of whole spectral regions with inclusion of all likely spectral features is now a viable method of approach. This again suggests that it was a member of a binary and that it lost most of its hydrogen-rich envelope by mass transfer. Astronomy Now: This is the site for the magazine Astronomy Now and has articles on all kinds of stuff that has to do with astronomy. Similarly, very little is presently known about the progenitors and the central engine of gamma-ray bursts, the largest explosions in the Universe. By probing the stellar dynamics of galaxy nuclei at spatial scales corresponding to the sphere of influence of the central black hole, we hope to unravel the physics that underlies the observed correlation. Our research group combines observational, computational and theoretical techniques to explore a wide range of open questions about the physics and properties of stars, galaxies and the Universe, focusing on probing how stars and stellar systems evolve, the properties of and physics behind the most extreme astrophysical objects (neutron stars, black holes, and quasars), and the physics and structure of the Universe on extragalactic scales. Extragalactic Astronomy and Cosmology: This includes the search for the epoch of reionization (Hewitt) and the first generation of stars (Frebel), the study of structure formation on the scales of galaxies (Simcoe), clusters of galaxies (McDonald, Canizares), and the cosmic web (Masui). The UK Gemini Support Group is located at Oxford. The UK Gemini Supportgroup is based in Oxford and provides user support for all UK users of Gemini as well as some specialist support for the international Gemini community. At Oxford we are, for example, studying the structure of the Universe using Type Ia Supernovae. There will be a Final Exam on Friday, May 27th in Boylston 103 In addtion to our work on black hole demographics, we also carry out more theoretical investigations into the effects these black holes have on their host galaxies. Savilian Professor of Astronomy: Professor Joe Silk Physics World represents a key part of IOP Publishing's mission to communicate world-class research and innovation to the widest possible audience. Yet it is unclear as to what physical processes collude to link two quantities whose size scales differ by a factor of more than a million. There are two fundamentally different types of supernovae: thermonuclear explosions which occur when a white dwarf is pushed above its maximum mass of 1.4 solar masses (the Chandrasekhar limit) and which leads to the complete disruption of the star (referred to as a 'Type Ia supernova'), and core-collapse supernovae which take place when the core of a massive star has exhausted all of its nuclear fuel. The velocity map shows that, this otherwise ordinary galaxy is rolling around its long axis but the central regions are rotating roughly perpendicular to this! When writing your college level physics research paper, you need to begin with a great topic. We know that the galaxy population in dense regions of the universe is quite different from that in regions of average density but we do not know why. Recent observations of the space velocities of pulsars (rapidly rotating neutron stars) have shown that when neutron stars are born in a supernova they receive very large kicks (presumably due to an asymmetry in the supernova explosion). But due to excessively busy schedule of graduates it is not possible for them to manage topic and work on them as well. If most stars evolve through the sdB star stage, following evolution up the giant branch, understanding the envelope loss which results in sdB star formation is crucial to understanding the late stages of stellar evolution; it would also be the key to understanding chemical evolution of a galaxy or star cluster over several stellar generations. We are the principal UK partners with Japan in the construction of a wide-field, multi-object, infrared spectrograph project (FMOS). stars and the interstellar medium and a third to galaxies and cosmology. In turn this will give new information on the fragmentation of molecular clouds as they collapse to form stars. Semi-analytical techniques can be applied to yield global star formation rates in disk galaxies and evolve nearby galaxies backwards in time. The frontier of particle physics is beyond the TeV energy range of current generations of accelerators but in the realm of the energy scales of supersymmetry or grand unification, or even quantum gravity. We study these objects across the electromagnetic spectrum using the largest ground-based optical and radio telescopes, and space-based facilities such as the HST, Chandra and XMM satellites, as well as infra-red and sub-mm imaging. To do this involves collecting an unprecendented sample of high-redshift supernova with better quality photometric and spectroscopic data. The appointment of Professor Roger Davies has led to an expansion in astronomical instrumentation. After tedious research and consultations. The quasar and radio source surveys described above give us quantitative information on the amount of that evolution but tell us little about how and why it occurs. Over the last decade, Binney and co-workers have been developing a new method (the Oxford Torus Project) to analyse the stellar kinematics of nearby stars. The use of Type Ia supernovae as standard candles has provided evidence that the expansion of the Universe is accelerating. The present paradigm for galaxy formation and evolution has galaxies assembling in their dark matter halos as these merge to form ever more massive objects over cosmic time. Full text with images, updated daily, free. Or if you are a student looking for a science experiment, I have posted step-by-step instructions for a variety of projects and you can find a list of links in my article: Science Fair Experiments. These are seen at times when the Universe was only about one billion years old, and are thus important for studying the earliest observable phases of galaxy formation. From microquasars to dark matter, read all the latest astrophysics news and research here. Astrophysics research is carried out in two sub-departments of physics: Astrophysics and Theoretical physics. principles. While supernova kicks are important for understanding the formation of LMXBs in the Galactic disc, in dense stellar environments like globular clusters, other processes may be more important. The class meets Monday + Wednesday 9:30-11:00 A.M. The matter fluctuations may be traced by making surveys of galaxies, clusters of galaxies, quasars or radio sources. Many massive X-ray binaries are predicted to merge in the near future. The DIRBE instrument that flew on the COBE satellite provided the most detailed picture to date of the Galactic Bulge. At the same time, cosmology attempts to comprehend the universe as a whole. We also attempt to understand the physics of stars, including the Sun, through the technique of astero- and helioseismology. Show: News Articles. Early results indicate that it is possible to trace cool material out to 10s of parcsec from the nucleus, and we are now extending these measurements to a larger sample of nearby galaxies. Type Ia supernovae have recently been used as cosmological distance candles (See Section 1.1.9) to measure the curvature of the Universe. However, statistical comparisons between millisecond pulsars and LMXBs suggest that there are either too many millisecond pulsars relative to the number of LMXBs or that the duration of the LMXB phase has been overestimated by a large factor. Oxford Each week we will also discuss a current preprint available on the Hypernovae are a rare, new supernova type, first identified in 1998, which are much more energetic than a normal supernova and are probably caused by the collapse of a rapidly rotating helium star to a stellar-mass black hole. Rougly speaking A recently published better understanding of sdB star evolution should help determine the contribution of sdB stars to the observed ultraviolet upturn in giant elliptical galaxies, with the view to its calibration as an age indicator. As we probe the galaxy distribution to fainter magnitude limits, the study of galaxy clustering is affected by the evolutionary histories of the galaxies themselves, as we see more distant objects at earlier times. However, star formation can sometimes play a major role in the energetics of the nuclear region. When two galaxies merge, do their black holes merge too? Spectra of the close nuclear environment also provide kinematic information about gas in the narrow line region, and allow us to probe the physical conditions and excitation mechanisms of the circumnuclear environment. This is an important test because the use of Type Ia supernovae for cosmology hinges on the assumption that the populations are similar and that Type Ia supernovae can be calibrated as "standard candles" out to redshifts of around one. We will do this We have also won a Marie Curie Excellence Grant from the European Commission for realising SWIFT, a novel integral field spectrograph. In particular, the secondary may become inflated which leads to accelerated evolution and a shorter duration of the LMXB phase. SN 1987A was the first naked-eye supernova since Kepler's supernova in 1604 and is a highly anomalous supernova. A recently established empirical relationship shows a tight correlation between the mass of the super-massive nuclear dark mass and the total mass of the galaxy bulge. FMOS will see first-light in early 2005, and provides an excellent opportunity for a D.Phil student to become involved in the laboratory testing and science verification phase of the instrument which will address a wide range of science programmes from brown-dwarf stars to the evolution of galaxies at high redshifts. The details of this process depend, however, on the circulation inside the secondary caused by the one-sidedness of the irradiation in a binary. Determination of the three-dimensional structure of the Universe requires surveys covering a large fraction of the observable Universe, and these surveys must account for a variety of biases and projection effects. Astrophysics (79) Black Holes (38) Cosmology (204) Dark Matter, Dark Energy (13) Galaxies (37) History of Astronomy (37) Nebulae (19) Observational astronomy (107) 1. How the luminous components of galaxies come to have their present appearance, why some have disks and others do not and when the major star forming episodes occurred are some of the central goals of our observational work on galaxy evolution. It has been recognised for 30 years that the space density of quasars was much higher in the past than at the present day. The Hubble Space Telescope (HST) has shown us that galaxy interactions and mergers were more common in the distant past and that these events are frequently associated with star formation episodes. For example, in globular clusters, LMXBs may form as a result of the tidal capture of a neutron star by a normal star. Additional financial support is also available from the University. Research topics include nonlinear optical techniques for the study of higher orders of light-matter interaction that enable the coupling of electronic and photonics and the control of light with light, and the development of new organic materials for photonics and optoelectronics applications such as all-optical switching and electro-optic modulators (Biaggio). One major objective is to understand the origin of the diversity of observed supernovae, the role various factors such as binarity, metallicity and rotation play and their implications for galaxy evolution models. Research at Oxford spans a wide range of astronomy and astrophysics, from the largest scales in the Universe to observational work on stars and the interstellar medium. The physical scales that are studied in this way overlap with the power spectrum inferred at high redshift from mapping of the cosmic microwave background, and combination of the two approaches will provide new insights into models for large-scale structure. On small angular scales, early formation of galaxy clusters, radio galaxies and quasars inevitably provide energy input into the intergalactic medium and generate fine- scale temperature anisotropies. The Astrophysics current missions include three of the Great Observatories originally planned in the 1980s and launched over the past 28 years. The particle relics from the beginning of the Universe may surround us today in the form of dark matter in galaxy halos. 100 Technology Paper Topics for Research Papers. We use the luminosity in X-rays to signal the presence of a true physical association at high redshift and to determine the local density of the intergalactic medium. We are also involved in a joint OPTICON-PPARC effort to define and develop science programs for the next generation of 30 and 100 meter telescopes (ELTs). Oxford researchers are carrying out a co-ordinated program to build up a larger sample of black hole mass measurements, especially at the low and high mass ends, to explore the dependence of black hole mass on galaxy morphology, level of activity, radio properties etc. This will be fed by a robotic fibre-optic positioning system at the prime focus of Japan's 8.3m Subaru telescope. The mechanism for transporting gas from ~100 pc scales to the immediate vicinity of the black hole is not well understood, although bars and Linblad resonances do play a vital role. By adjusting the distributions of stars on tori, models are obtained for the interpretation of the kinematics of stars in the Milky Way. Submit an article opens in new tab Nuclear astrophysics is a multidisciplinary area of physics aimed at understanding the origin of chemical species and the nuclear history ofthe universe. This was striking confirmation of a viewpoint earlier advanced in Oxford and elsewhere that the Milky Way galaxy is barred, with the near-side of the bar lying towards positive longitudes. Without further ado, let’s delve into the physics topics list prepared specially for you! Oxford Astrophysics has been successful in attracting long-term Royal Society, PPARC Advanced and other Senior Research Fellows funded by a grant from the Leverhulme Trust. We are particularly interested in applying this theory to two of the most interesting nearby supernovae of our generation, SN 1987A and SN 1993J. J F Wheater* Conformal symmetries and their extensions are a powerful tool in the study of field theories. Quantum gravity is studied in two dimensions where it has many equivalent descriptions including, as a conformal field theory and in high… Research in Astronomy and Astrophysics is an international journal publishing original research papers and reviews across all branches of astronomy and astrophysics. As a result of a complete merger, the neutron star sinks to the centre of the massive star forming a new hybrid object, generally referred to as a Thorne-Zytkow object (TZO). Type Ia supernova SN 1994D in the galaxy NGC 4526, observed by the HST. Good Topics For A Physics Research Paper In College. This latter, more likely, possibility may be understood by irradiation effects which can dramatically change the structure of the irradiated normal star. We are also able to estimate the age of the stars that dominate the integrated light. The various binary interactions (mass loss, mass accretion and merging) can fundamentally change the structure of a massive star and may thereby account for many of the observational supernova sub-classes. Finally, Oxford scientists are working with colleagues in Europe to define the next generation of Extremely Large Telescopes (ELTs). These programmes require observations at all wavebands, and often at the high angular resolution offered by Very Long Baseline Interferometry at radio wavelengths or the HST in the infrared, optical and ultraviolet wavebands. The increasingly refined measurements of anisotropies that have been detected over a range of angular scales are beginning to constrain and even challenge theoretical models. Through statistical studies of galaxies in different environments over a range of redshift we can eliminate candidate mechanisms. interstellar medium, cosmology and extragalctic astronomy. KMOS will be one of the VLT's second generation instruments, and will represent UK's major contribution to VLT instrumentation. An improved understanding of protogalaxy evolution will have profound implications for understanding chemical evolution and for interpreting far infrared and submillimetre observations of star- forming galaxies in the distant Universe. astrophysics preprint server and related to the topic of the lectures. Our main areas of involvement in the study are in setting the scientific requirements for an ELT and studying potential ELT instruments. A history of astronomy. Displaying 1 - 15 of 204 news articles related to this topic. These have yielded high-redshift radio galaxies whose host-galaxy light should be less affected by the active nucleus, and whose properties give direct information on the formation and early evolution of elliptical galaxies. Astrophysics Research Current Missions. Improved techniques for the analysis of stellar spectra are under development; these take advantage of better computer hardware, numerical methods and (most important of all) recent advances in atomic and molecular physics. It is very likely that the decoupled kinematics arose from a merger but character of the stars tells us this happened 12-14 Gyrs ago in the initial star forming event and that the galaxy has been quiescent since. However, whether this is a viable process depends on the response of the normal star when the tidal energy is deposited inside the star (the tidal energy can be a large fraction of the binding energy of the star). The Anglo-Australian 2dF Redshift Survey measured redshifts for 250,000 galaxies; this provided the first three-dimensional measurements of galaxy clustering on the large scales that may be studied at early cosmic epochs by measuring fluctuations in the microwave background. Galaxy mergers induce ultraluminous starbursts, and study of such phenomena, including the roles of infall, galactic winds and active nuclei, provides insight into spheroid formation. Over the last decade the Oxford Torus Project has been developing the tools necessary to apply these ideas to the construction of detailed models of real galaxies. Exams are 3 hours in length and will use bluebooks. There are good opportunities for graduate students studying for t… Just the calm you need to begin with a strong influx of new personnel and projects... Group also coordinates the UK Gemini support group is located at Oxford built SAURON on! This research is carried out in two sub-departments of physics in the near future DIRBE instrument that on. How the entropy injected into the physics applied to yield global star formation these! Not extremely astrophysics topics for research their large-scale distribution experts have suggested free topics for physics to the here! 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