1 / 16

Exploring Binary Stars with Microtelescopes: A New Frontier in Astronomy

This presentation highlights innovative research on binary and variable stars using microtelescopes. Initially, the evolution of telescope technology is traced from Galileo to modern CCDs, emphasizing the importance of observing bright stars for long-term variability studies. The need for an increase in photometric measurements among amateurs and small observatories is highlighted, along with the potential of micro/nanotelescopes to democratize astronomy. Examples of successful observations using small telescopes showcase their efficacy and potential to yield unique data in stellar studies.

argyle
Télécharger la présentation

Exploring Binary Stars with Microtelescopes: A New Frontier in Astronomy

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Binary starresearchusing „microtelescopes“ Miloslav Zejda, Zdeněk Mikulášek, Jiří Liška Masaryk University Brno, Czech Republic Petr Svoboda privateobservatory, Brno, Czech Republic KOLOS 2011, Kolonica, December 1, 2011

  2. firsttelescopes – diameteronlyseveral cm! • Galileo & Castelli: • discoveriesofbinariesormultiplesystems: • Mizar(1616), • J1Orionis – Trapez(1617) • bScorpii …

  3. Variablestarsobservations(in modernhistorysince 1596) • Means: • nakedeye – limits – 6-7 mag, • telescope + eye – 1844 Argelander • telescope + photography – 1881 Draper – 14.7 mag • telescope + photoelectricphotometer • 1892 Monck, 1907 Stebinns • 1946 Kron, early 50‘s Johnson & Morgan UBV • telescope + CCD – 1979 – KittPeak NO

  4. Silicon age • spread of objective measurements among many observatories and amateur astronomers • increasing number of photometric measurements • observing of fainter and fainter objects • HOWEVER • stars brighter than6 mag are too bright • => lack of observations of bright stars!

  5. Do we need observations of bright stars? yes, indeed! Why? • variability of bright stars is usually known for a long time => unique possibility to study long-term variations • usage of different methods except photometry

  6. objections? surveys – ASAS… - monochromatic, unsatisfactorytimeresolution spacemissions – Hipparcos – good, but old, timeresolution Kepler, COROT – excellentjobs, but … GAIA – bright limit 6 mag nano-satellite – BRITE project

  7. solution? • return to Galileo‘ssizetelescopes • => usageofmicro/nanotelescopes • „windows astronomy“ • „balcony astronomy“ • breakdowntheprejudices • suitable for amateursand small observatories • Advantages: • cheapacquisition • cheap and efficientpractise • excellent opportunity to obtain unique • long sets of observations • possibilityforstudents and travellers

  8. suggestions? • to equiptheobserverswith a kit (CCD, photometricfilters, nanotelescope) • tellthemwhat and howtheyshouldobserve (targets, filters, timeresolutions…) • establish a network ofobservers – seeforanexample http://var.astro.cz

  9. Examplesofusagenanotelescopes

  10. NO Pup Minima timingsofeclipsingbinaries P. Svoboda; 0.035m refractor CCD SBIG ST7 filterI J. Liška: RF 0.04m + CCD ATIK 16Ic Phe DI = 0.15 mag TW Dra

  11. Lightcurves J. Liška: 0.04m refractor + CCD G2-0402 SAAO 0,5m + single-channel PEP MJUO 0,6m + single-channel PEP L. C. Watson, J. D. Pritchard, J. B. Hearnshaw,P P. M. Kilmartin and A. C. Gilmore:MNRAS 325, 143–150 (2001)

  12. P. Svoboda; 0.035m refractor, CCD SBIG ST7

  13. P. Svoboda; 0.035m refractor, CCD SBIG ST7 HD 1438 (And) amplitudeDV≈ 0.02 mag

  14. Itisworth to do it!

  15. Thank you for your attention! In thepresentationweusedobservations and materialsfrom: VSES archive NYX archive personalarchivesofauthors MNRAS 325, 143–150 (2001) NASA ADS servise webpages: http://ccd.mii.cz http://var.astro.cz http://www.astronomie2009.cz http://en.wikipedia.org and others Your notes are welcome! zejda@physics.muni.cz

More Related