Date of Birth - 15.08.1985, Blagoevgrad, Bulgaria.
Nationality - Bulgarian
Resident of - Germany
2010 – present PhD, IMPRS-HD, Heidelberg University, Heidelberg, Germany, (expected completion February 2014).
2008 – 2009 Master, Astronomy and Astrophysics, Sofia University, Sofia, Bulgaria.
2004 – 2008 Bachelor, Physics, Sofia University, Sofia, Bulgaria.
2000 – 2004 Professional High School of Electronics, PGEE “Nikola Vapcarov”, Blagoevgrad,Bulgaria.
PhD thesis title
Planetary dynamics and high precision optical and near infrared spec troscopy. Testing the planetary hypothesis around evolved K-giants.
supervisors - Andreas Quirrenbach, Sabine Reffert, Martin Kürster
Bulgarian - native speaker
English - fluent
Russian - intermediate
German - beginner
2008–2010 Chief radio engineer, Radio Network ’Focus’, Sofia, Bulgaria.
2007–2008 Electrical technician, ’RAK’ Security Systems, Sofia, Bulgaria.
2006–2007 Electrical technician, CMSG Group, Sofia, Bulgaria.
2005–2005 WAT student, Issac’s Relocation Service, Philadelphia, USA.
2003–2004 System administrator, Internet Coffee ’Arena’, Blagoevgrad, Bulgaria.
2011 term Assistant, Astronomy Lab., Heidelberg University, Landessternwarte.
2013 term Assistant, Astronomy Lab., Heidelberg University, Landessternwarte.
June 2011 - Opto-mechanical Design in Astronomy, Astrophysical Institute Potsdam (AIP).
Aug. 2011 - Characterizing exoplanets - from formation to atmospheres, IMPRS for Astronomy and Cosmic Physics at the University of Heidelberg.
2010-2013 - International Max Planck Research School for Astronomy (IMPRS-HD) fellowship.
OS - Linux/Unix, Mac, Windows
Writhing - LaTeX, MS/Open Office
Programing - IDL, Python, Fortran, Bash (also learning C and C++)
Graphics - IDL, Python, Gnuplot
N-body - Mercury, Swift
Astro software - IRAF, Systemic Console, Gasgano, Esorex, DS9, MaximDL
- More than 50 observing nights at the CAT telescope, Lick observatory USA.
- Over 70 nights on the 70 cm telescope in Landessternwarte (LSW), Heidelberg, Germany.
- Over 20 nights in Rozhen Observatory, Bulgaria with the RCC 2m telescope and the 50/70 cm Schmidt telescope.
Interests in Astronomy
Extrasolar planets, Spectroscopy, Star and planet formation, Planetary dynamical simulations,
Extragalactic Novae and SNe, Astro-seismology of Giant stars, Data reduction pipeline development,
List of Publications
Precise Radial Velocities of Giant Stars. V. A brown dwarf and a planet orbiting the K giant stars τ Geminorum and 91 Aquarii - Mitchell, D. S., Reffert, S., Trifonov, T., Quirrenbach, A. and Fischer, D. A., 2013, A&A, 555:A87
Precise Radial Velocities of Giant Stars. VII. Discovery and stability analysis of the planetary system around the K giant star η Cet - Trifonov, T., Reffert, S., Tan, X., Lee, M. H., and Quirrenbach, A., 2013, A&A, submitted
Precise Radial Velocities of Giant Stars. VI. Occurrence Rate of Giant Extrasolar Planets as a Function of Mass and Metallicity - Reffert, S., Bergmann, C., Trifonov, T., Künstler, A., and Quirrenbach, A., 2013, A&A, submitted
Papers in preparation
Testing the planetary hypothesis around giant stars with CRIRES - Trifonov, T., Reffert, S., Zechmeister,M., Reiners, A., and Quirrenbach, A., 2013, A&A, in preparation
MMRD relationship for novae in M31 Galaxy - Trifonov, T., Ovcharov, E., Valcheva, A., and Nedialkov, P., 2010, Meetings in Physics vol.11, Sofia, Bulgaria
Four August 2009 Novae in M31 - Light Curves, Colours and MMRD - Ovcharov, E., Valcheva, A., and Nedialkov, P., Trifonov, T., 2010, Astronomical Observatory of Belgrade, vol. 90, Belgrade, Serbia
Two giant planets orbiting the K giant star η Cet - Trifonov, T., Reffert, S., Tan, X., Lee, M. H., and Quirrenbach, A., 2013, IAU Symposium 299, Victoria, Canada
Registering is the only way of posting vacancies and obtaining contact details of candidates in our CV database.
All it takes is a few minutes and a credit card (Visa or American Express). To sign-up to this service, simply click on the Register link and fill in the form. You will then have instant access to our system after on-line payment where you will be able to complete the transaction in either US Dollars, UK Pounds or Euros.
All online credit/debit card transitions are handled through our secure third party payment processors at WorldPay. Worldpay are part of The Royal Bank of Scotland Group, the 5th biggest banking group in the world, WorldPay payment solutions are trusted by thousands of businesses, big and small worldwide.
Pricing starts at €450 (approx £400 or US$500 - use the convert tool for an exact conversion) for one month unlimited job postings and unlimited CV database access (for one user), with package discounts available if you have more permanent recruiting needs. For example, a Gold subscription will give you unlimited jobs posting and unlimited CV database access for one year at just over €250 per month!
2018 Pricing Structure (excluding VAT):
|1 month - Discovery||450 euros||convert|
|3 months - Bronze||1150 euros||convert|
|6 months - Silver||1950 euros||convert|
|12 months - Gold||3200 euros||convert|
If online payment is not convenient, give us a call at +33(0)562211007 or send us an email at firstname.lastname@example.org. We will set up an account for you and invoice you. Note that you can also pay through PayPal.
Please note that the posting of academic positions is free of charge. All you need to do is email us your job description and we will post it for you.
Spacelinks is based in France so the following European Union regulations regarding electronic commerce apply:
- if your business is located outside the EU, VAT does not apply to you
- if your business is located in France, you will be charged a 20% VAT
- if your business is located in the EU and you don't have a valid VAT registration number, you will be charged a 20% VAT
- if your business is located in the EU and you do have a valid VAT registration number, you won't be charged VAT provided you give us your VAT number (mandatory for invoicing)
For sales enquiries and general information, you can call us on +33(0)562211007.
Support is available Mon-Fri on +33(0)562211007 or via email. Out-of-hours support is provided only via email.
Please also note that we are located in France. Our normal office hours are 09:00 to 18:00 Monday to Friday. France timezone is GMT+1.
We are very serious about our job seekers privacy so only legitimate recruiters and employers are eligible for a recruiter account. All subscriptions requests will be manually approved and recruiter accounts constantly monitored. Users who enter inaccurate or incomplete information will not gain access to post jobs or search resumes. Sharing of login details with a third party will result in the suspension of the recruiter's account with no subscription refund.
Recruitment agencies are only eligible for a Gold package and recruitment agencies recruiting for companies already using Space Careers will not be accepted.
To ensure you are approved, please include the following on your application:
* The website address of your Company. Under construction websites will be rejected.
* Email - Must end in @yourcompany.com. Applications using free email accounts such as Hotmail, Yahoo or Gmail will be rejected.
Individual exceptions can be made on a case by case basis by emailing email@example.com. Accounts found not to be in compliance will be deleted.