activity
19942020
most citedAstrometry and Photometry for Cool Dwarfs and Brown Dwarfs

626 citations · 10.2k across the 90 of their papers we have counts for

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Showing 1997Show all

7 papers · 1 filter

astro-ph1997★ 44 cited

The Lower Main Sequence and the Orbital Period Distribution of Cataclysmic Variable Stars

J. Christopher Clemens, I. Neill Reid, John E. Gizis +1

The color-magnitude diagram of the lower main sequence, as measured from a volume-limited sample of nearby stars, shows an abrupt downward jump between Mv = 12 and 13. This jump in…

astro-ph1997★ 70 cited

Low-mass Binaries in the Hyades - A scarcity of brown dwarfs

I. Neill Reid, John E. Gizis

We have obtained HST Planetary Camera observations of a total of fifty-three low-mass (M < 0.3 M_solar) members of the Hyades cluster. Nine of these stars are resolved as binaries,…

astro-ph1997★ 1 cited

Masses and Gravities of Blue Horizontal Branch Stars Revisited

U. Heber, S. Moehler, I. N. Reid

Previous spectroscopic analyses of Blue Horizontal Branch (BHB) stars in six globular clusters revealed too low masses in four clusters when compared to canonical evolutionary theo…

astro-ph1997★ 24 cited

M Subdwarf Secondaries: A Test of the Metallicity Scale

John E. Gizis, I. Neill Reid

We present spectra of three M subdwarfs which are common proper motion companions to F or G subdwarfs of known metallicity. The assumption that the companions have the same composi…

astro-ph1997★ 72 cited

Probing the LHS Catalog. I. New Nearby Stars and the Coolest Subdwarf

John E. Gizis, I. Neill Reid

We present moderate resolution spectroscopy of 112 cool dwarf stars to supplement the observations we have already presented in the Palomar/MSU Nearby-Star Spectroscopic Survey. Th…

astro-ph1997★ 162 cited

MACHO Alert 95-30 : First Real-Time Observation of Extended Source Effects in Gravitational Microlensing

C. Alcock, W. H. Allen, R. A. Allsman +54

We present analysis of MACHO Alert 95-30, a dramatic gravitational microlensing event towards the Galactic bulge whose peak magnification departs significantly from the standard po…

astro-ph1997★ 32 cited

Faint M-dwarfs and the structure of the Galactic disk

I. N. Reid, J. E. Gizis, J. G. Cohen +5

We use broadband photometry and low-resolution spectra of a complete sample of late-K and M dwarfs brighter than I=22 in three fields at high galactic latitude to study issues rela…