• Publications
  • Influence
An eclipsing-binary distance to the Large Magellanic Cloud accurate to two per cent
In the era of precision cosmology, it is essential to determine the Hubble constant to an accuracy of three per cent or better. At present, its uncertainty is dominated by the uncertainty in theExpand
  • 399
  • 137
  • PDF
Unbound or distant planetary mass population detected by gravitational microlensing
  • T. K. D. P. I. A. F. C. S. A. K. J. B. Y. P. M. A. W. Sumi Kamiya Bennett Bond Abe Botzler Fukui Furusaw, T. Sumi, +38 authors K. Ulaczyk
  • Physics, Medicine
  • Nature
  • 1 May 2011
Since 1995, more than 500 exoplanets have been detected using different techniques, of which 12 were detected with gravitational microlensing. Most of these are gravitationally bound to their hostExpand
  • 351
  • 42
  • PDF
One or more bound planets per Milky Way star from microlensing observations
Most known extrasolar planets (exoplanets) have been discovered using the radial velocity or transit methods. Both are biased towards planets that are relatively close to their parent stars, andExpand
  • 389
  • 41
  • PDF
Discovery of a cool planet of 5.5 Earth masses through gravitational microlensing
In the favoured core-accretion model of formation of planetary systems, solid planetesimals accumulate to build up planetary cores, which then accrete nebular gas if they are sufficiently massive.Expand
  • 489
  • 37
  • PDF
EXTRAGALACTIC CHEMICAL ABUNDANCES: DO H II REGIONS AND YOUNG STARS TELL THE SAME STORY? THE CASE OF THE SPIRAL GALAXY NGC 300*
We have obtained new spectrophotometric data for 28 H II regions in the spiral galaxy NGC 300, a member of the nearby Sculptor Group. The detection of several auroral lines, including [O III] λ4363,Expand
  • 176
  • 37
  • PDF
A distance to the Large Magellanic Cloud that is precise to one per cent
In the era of precision cosmology, it is essential to determine the Hubble constant empirically with an accuracy of one per cent or better1. At present, the uncertainty on this constant is dominatedExpand
  • 82
  • 30
  • PDF
THE ARAUCARIA PROJECT: NEAR-INFRARED PHOTOMETRY OF CEPHEID VARIABLES IN THE SCULPTOR GALAXY NGC 300
We have obtained deep images in the near-infrared J and K filters of four fields in the Sculptor group spiral galaxy NGC 55 with the ESO VLT and ISAAC camera. For 40 long-period Cepheid variables inExpand
  • 96
  • 30
  • PDF
Calibrating The Cepheid Period-Luminosity Relation From The Infrared Surface Brightness Technique I. The P-Factor, The Milky Way Relations, And A Universal K-Band Relation
Aims. We determine period-luminosity relations for Milky Way Cepheids in the optical and near-IR bands. These relations can be used directly as reference for extra-galactic distance determination toExpand
  • 101
  • 24
  • PDF
Classical Cepheid Pulsation Models. X. The Period-Age Relation
We present new period-age (PA) and period-age-color (PAC) relations for fundamental and first-overtone classical Cepheids. Current predictions rely on homogeneous sets of evolutionary and pulsationExpand
  • 103
  • 23
  • PDF
A new LMC K-band distance from precision measurements of nearby red clump stars
High-precision (sigma < 0.01) new JHK observations of 226 of the brightest and nearest red clump stars in the solar neighbourhood are used to determine distance moduli for the LMC. The resulting K-Expand
  • 66
  • 22
  • PDF
...
1
2
3
4
5
...