'Pulsar' diaporamas de présentation

Forefront of neutron star science Precision astrometry using the VLBA Bowshocks and jets

Pulsars in Motion: Astrometry, Kicks, ALFA and the SKA Jim Cordes, Cornell University. Forefront of neutron star science Precision astrometry using the VLBA Bowshocks and jets Pulsar velocities: Bimodality Kick mechanisms: tie-ins to cosmology? ALFA: A massive pulsar survey at Arecibo

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Endpoints of stellar evolution

Endpoints of stellar evolution. The end of stellar evolution is an inert core of spent fuel that cannot maintain gas pressure to balance gravity .

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Pulsar Status Report

Pulsar Status Report. PULSAR : PULS er A nd R ecorder. Pulsar design overview : ? from L2 teststand tool to a general purpose tool Current status : ? schematics/layout, firmware, board level simulation etc. Possible applications for Pulsar

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OBJECTIVE: Review for Final

OBJECTIVE: Review for Final. FINISH YOUR STUDY GUIDE!!!!. Final Exam Study Guide. 1. How do thunderstorms form ?. Warm moist air rises forcefully Water vapor condenses providing energy for the storm Updrafts and downdrafts maintain storms energy Storm dissipates when it runs out of energy.

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The timing behaviour of radio pulsars

The timing behaviour of radio pulsars. George Hobbs Australia Telescope National Facility george.hobbs@csiro.au. Contents. Radio pulsars Pulsar timing A few things that you can do with pulsar timing Young pulsars - a new (predictive?) model for timing noise

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An accretion model for anomalous X-ray pulsars

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Silent Stores for Free (or, Silent Stores Darn Cheap)

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Incredible Shrinking Stars

Incredible Shrinking Stars. The End States of Stars. White Dwarfs. Earth. White Dwarf. White Dwarf Facts. * Composition: carbon, oxygen * Mass limit < 1.4 M ? ( Chandrasekhar Limit ) * Avg mass ? 0.5 M ?. Mass, radii ? density ? 1 ton/cm 3. Sirius B (white dwarf). Sirius.

566 views • 32 slides

High Energy Emission from Composite Supernova Remnants

High Energy Emission from Composite Supernova Remnants. Composite SNRs. Pulsar Wind - sweeps up ejecta; shock decelerates flow, accelerates particles; PWN forms Supernova Remnant - sweeps up ISM; reverse shock heats ejecta; ultimately compresses PWN

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Circular Polarization of Gravitational Waves in String Cosmology

MIAMI, 200 ? .12.14. Circular Polarization of Gravitational Waves in String Cosmology. Jiro Soda. Kyoto University. work with Masaki Satoh & Sugumi Kanno arXiv:0706.3585. Polarization of Gravitational Waves. Action for GW.

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Compact Objects

Astronomy 315 Professor Lee Carkner Lecture 15. Compact Objects. What are Compact Objects?. The densest objects in the universe Can produce strong, high-energy radiation and outbursts when in binary systems. White Dwarf. Mass: Size: earth-sized (~10000 km diameter) Density:

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Radio Astronomy -- Other Than ALFA Surveys

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Searching for gravitational waves from known pulsars

Searching for gravitational waves from known pulsars. Matthew Pitkin for the LIGO Scientific Collaboration. Summary of work to date. There have been three science runs of the LIGO detectors and two with GEO 600 (S1 and S3) with which known pulsar searches have been or are being performed:

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S2 Hardware Pulsar Injections

S2 Hardware Pulsar Injections. Bruce Allen, for the pulsar group, and Peter Shawhan, Szabi Marka, Scott Koranda. Why Do Hardware Injections?. Provides end-to-end validation of search code: Gain confidence about tricky things like floating point dynamic range in filtering process

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Overview of Pulsar Tools

Overview of Pulsar Tools. Masaharu Hirayama (GLAST SSC, JCA/UMBC) James Peachey (GLAST SSC, HEASARC). Plot by D.J. Thompson. Pulsars for GLAST LAT. Pulsars are point sources GLAST expected to detect pulsations from 50-100 pulsars 10-50% are predicted to be radio quiet like Geminga

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A Slow X-ray Pulsar in the Young, Massive Star Cluster Westerlund 1

A Slow X-ray Pulsar in the Young, Massive Star Cluster Westerlund 1. 2MASS Atlas Image. A Galactic Super Star Cluster. Distance: 5kpc Mass: 10 5 M sun Core radius: 0.6 pc Extent: ~6 pc across Core density:~10 6 pc -3 Age: 4 +/- 1 Myr Supernova rate: 1 every 10,000 years.

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Bajaj Avenger Vs Bajaj Pulsar - Talking Trendo

Bajaj Auto has been at the controls of the performance brigade in the country with its Pulsar and Avenger range of motorcycles. At Talking Trendo compare these two bikes.

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Chandra Science Highlight

Chandra Science Highlight. IGR J11014-6103: A Runaway Pulsar With A Long Helical Jet.

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Pulsar Data Analysis Team Lyne

Pulsar Data Analysis Team Lyne. Delaney Pigott, Thomas Hillenbrand, Zach Ramey, Mariah Gnegy, Elizabeth Schmitz, Dana Dawley. Task Our task was to look through 15 datasets and decide whether the given plots were noise, RFI, or a possible pulsar candidate. RFI. Pulsar Candidates.

139 views • 1 slides