Browsing by Author "Udalski, A."

Now showing items 1-5 of 5

    • Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way 

      Howes, L. M.; Casey, A. R.; Asplund, M.; Keller, S. C.; Yong, D.; Nataf, D. M.; Poleski, R.; Lind, K.; Kobayashi, C.; Owen, C. I.; Ness, M.; Bessell, M. S.; Costa, G. S. Da; Schmidt, B. P.; Tisserand, P.; Udalski, A.; Szymański, M. K.; Soszyński, I.; Pietrzyński, G.; Ulaczyk, K.; Wyrzykowski, Ł.; Pietrukowicz, P.; Skowron, J.; Kozłowski, S.; Mróz, P. (2015-11-26)
      The first stars are predicted to have formed within 200 million years after the Big Bang, initiating the cosmic dawn. A true first star has not yet been discovered, although stars with tiny amounts of elements heavier than ...

    • The influence of binarity on dust obscuration events in the planetary nebula M 2-29 and its analogues 

      Miszalski, B.; Mikolajewska, J.; Koppen, K.; Rauch, T.; Acker, A.; Cohen, M.; Frew, D.J.; Moffat, A.F.J.; Parker, Q.A.; Jones, A.F.; Udalski, A. (2011)
      The central star of the planetary nebula (CSPN) M 2-29 shows an extraordinary R Coronae Borealis-like fading event in its optical lightcurve. The only other CSPN to show these events are CPD−56◦8032 (Hen 3-1333) and V651 ...

    • MOA-2011-BLG-262Lb : A sub-earth-mass moon orbiting a gas giant primary or a high velocity planetary system in the galactic bulge 

      Bennett, D. P.; Batista, V.; Bond, I. A.; Bennett, C. S.; Suzuki, D.; Beaulieu, J. P.; Udalski, A.; Donatowicz, J.; Bozza, V.; Abe, F.; Botzler, C. S.; Freeman, M.; Fukunaga, D.; Fukui, A.; Itow, Y.; Koshimoto, N.; Ling, C. H.; Masuda, K.; Matsubara, Y.; Muraki, Y.; Namba, S.; Ohnishi, K.; Rattenbury, N. J.; Saito, To; Sullivan, D. J.; Sumi, T.; Sweatman, W. L.; Tristram, P.J.; Tsurumi, N.; Wada, K.; Yock, P. C. M.; Albrow, M. D.; Bachelet, E.; Brillant, S.; Caldwell, J.A.R.; Cassan, A.; Cole, A. A.; Corrales, E.; Coutures, C.; Dieters, S.; Dominis Prester, D.; Fouqué, P.; Greenhill, J.; Horne, K.; Koo, J. R.; Kubas, D.; Marquette, J. B.; Martin, R.; Menzies, J.W.; Sahu, K. C.; Wambsganss, J.; Williams, A.; Zub, M.; Choi, J. Y.; Depoy, D. L.; Dong, Subo; Gaudi, B. S.; Gould, A.; Han, C.; Henderson, C. B.; Lee, C. U.; Pogge, R. W.; Shin, I. G.; Yee, J. C.; Szymański, M. K.; Skowron, J.; Poleski, R.; Kozłowski, S.; Wyrzykowski, L.; Kubiak, M.; Pietrukowicz, P.; Pietrzyński, G.; Soszyński, I.; Ulaczyk, K.; Tsapras, Y.; Street, R. A.; Dominik, M.; Bramich, D.M.; Browne, P.; Hundertmark, M.; Kains, N.; Snodgrass, C.; Steele, I.A.; Dekany, I.; Gonzalez, O. A.; Heyrovský, D.; Kandori, R.; Kerins, E.; Lucas, P.W.; Minniti, D.; Nagayama, T.; Rejkuba, M.; Robin, A.C.; Saito, And R. (2014-04-20)
      We present the first microlensing candidate for a free-floating exoplanet-exomoon system, MOA-2011-BLG-262, with a primary lens mass of M host ∼ 4 Jupiter masses hosting a sub-Earth mass moon. The argument for an exomoon ...

    • V346 Nor: the post-outburst life of a peculiar young eruptive star 

      Kóspál, Á.; Szabó, Zs M.; Ábrahám, P.; Kraus, S.; Takami, M.; Lucas, P. W.; Peña, C. Contreras; Udalski, A. (2020-02-03)
      FU Orionis-type objects (FUors) are young low-mass stars undergoing powerful accretion outbursts. The increased accretion is often accompanied by collimated jets and energetic, large-scale molecular outflows. The extra ...

    • The VMC survey II : A multi-wavelength study of LMC planetary nebulae and their mimics 

      Miszalski, Brent; Napiwotzki, Ralf; Cioni, M-R.L.; Groenewegen, M.A.T.; Oliveira, J.M.; Udalski, A. (2011)
      The VISTA Magellanic Cloud (VMC) survey is assembling a deep, multi-epoch atlas of Y JKs photometry across the Magellanic Clouds. Prior to the VMC survey only the brightest Magellanic Cloud PNe (MCPNe) were accessible at ...