I. Methodology, Jeffrey L. Linsky, Seth Redfield, Brian E. Wood, Nikolai Piskunov
In this Ðrst in a series of papers, we develop a methodology for constructing three-dimensional models of the local interstellar cloud (LIC) and adjacent warm clouds in the local interstellar medium...
Deuterium Observations in our Galaxy (View A) (2007)
Jeffrey L. Linsky, Brian E. Wood
Abstract. Accurate measurements of the D/H ratio in our Galaxy provide critical tests of Galactic chemical evolution and constrain the primordial value of D/H. Very high quality ultraviolet spectra...
Brian E. Wood, L. Linsky, Gary P. Zank
We use high-resolution UV spectra taken by the Space Telescope Imaging Spectrograph instrument on board the Hubble Space Telescope to study the 5.5 pc line of sight to the K0 V star 36 Oph A. The one...
In 1995È1996, the Goddard High Resolution Spectrograph (2007)
Brian E. Wood, Carol W. Ambruster, Alexander Brown, Jeffrey L. Linsky
We analyze local interstellar medium (LISM) absorption observed in the Lya and Mg II h and k lines of six nearby K dwarf stars, using UV spectra of these stars obtained with the Goddard High...
Jeffrey L. Linsky, Seth Redfield, Brian E. Wood, Nikolai Piskunov, Hubble Space Telescope
In this first in a series of papers, we develop a methodology for constructing three-dimensional models of the Local Interstellar Cloud (LIC) and adjacent warm clouds in the Local Interstellar Medium...
What is the Total Deuterium Abundance in the Local Galactic Disk? (2007)
Linsky, Jeffrey L., Draine, Bruce T., Moos, H. W., Jenkins, Edward B., Wood, Brian E., Oliveira, Cristina, ...
Analyses of spectra obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite, together with spectra from the Copernicus and IMAPS instruments, reveal an unexplained very wide range...
Dependence of Heliospheric Lyman-alpha Absorption on the Interstellar Magnetic Field (2007)
Wood, Brian E., Izmodenov, Vladislav V., Linsky, Jeffrey L., Alexashov, Dmitry
We use newly developed 3D kinetic MHD models of the heliosphere to predict heliospheric H I Lyman-alpha absorption for various lines of sight. These predictions are compared with actual Lyman-alpha...
Lyman-alpha Absorption from Heliosheath Neutrals (2006)
Wood, Brian E., Izmodenov, Vladislav V., Linsky, Jeffrey L., Malama, Yury G.
We assess what information HST observations of stellar Ly-alpha lines can provide on the heliosheath, the region of the heliosphere between the termination shock and heliopause. To search for...
What is the Total Deuterium Abundance in the Local Galactic Disk? (2006)
Linsky, Jeffrey L., Draine, Bruce T., Moos, H. W., Jenkins, Edward B., Wood, Brian E., Oliveira, Cristina, ...
Analyses of spectra obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite, together with spectra from the Copernicus and IMAPS instruments, reveal an unexplained very wide range...
Wood, Brian E., Karovska, Margarita
Recent ultraviolet spectra from the Hubble Space Telescope (HST) and Far Ultraviolet Spectroscopic Explorer (FUSE) satellites demonstrate that UV line and continuum fluxes observed from Mira B are...
Coronal Emission Measures and Abundances for Moderately Active K Dwarfs Observed by Chandra (2006)
Wood, Brian E., Linsky, Jeffrey L.
We have used Chandra to resolve the nearby 70 Oph (K0 V+K5 V) and 36 Oph (K1 V+K1 V) binary systems for the first time in X-rays. The LETG/HRC-S spectra of all four of these stars are presented and...
New Mass Loss Measurements from Astrospheric Lyman-alpha Absorption (2005)
Wood, Brian E., Mueller, Hans-Reinhard, Zank, Gary P., Linsky, Jeffrey L., Redfield, Seth
Measurements of stellar mass loss rates are used to assess how wind strength varies with coronal activity and age for solar-like stars. Mass loss generally increases with activity, but we find...
Wood, Brian E., Redfield, Seth, Linsky, Jeffrey L., Mueller, Hans-Reinhard, Zank, Gary P.
We search the Hubble Space Telescope (HST) archive for previously unanalyzed observations of stellar H I Lyman-alpha emission lines, our primary purpose being to look for new detections of...
Astrospheres and Solar-like Stellar Winds (2004)
Stellar analogs for the solar wind have proven to be frustratingly difficult to detect directly. However, these stellar winds can be studied indirectly by observing the interaction regions carved out...
Two New Low Galactic D/H Measurements from FUSE (2004)
Wood, Brian E., Linsky, Jeffrey L., Hebrard, Guillaume, Williger, Gerard M., Moos, H. Warren, Blair, William P.
We analyze interstellar absorption observed towards two subdwarf O stars, JL 9 and LSS 1274, using spectra taken by the Far Ultraviolet Spectroscopic Explorer (FUSE). Column densities are measured...
The Far-Ultraviolet Spectra of TW Hya. II. Models of H2 Fluorescence in a Disk (2004)
Herczeg, Gregory J., Wood, Brian E., Linsky, Jeffrey L., Valenti, Jeff A., Johns-Krull, Chris M.
We measure the temperature of warm gas at planet-forming radii in the disk around the classical T Tauri star (CTTS) TW Hya by modelling the H2 fluorescence observed in HST/STIS and FUSE spectra....
Wood, Brian E., Karovska, Margarita
We present new Far Ultraviolet Spectroscopic Explorer (FUSE) observations of Mira A's wind-accreting companion star, Mira B. We find that the strongest lines in the FUSE spectrum are H2 lines...
Investigating a Possible Spectral Signature of the Wind-ISM Interaction Region of Alpha Tau (2002)
Wood, Brian E., Harper, Graham M., Mueller, Hans-Reinhard, Zank, Gary P.
Ultraviolet spectra from the GHRS instrument on board the Hubble Space Telescope reveal the presence of a mysterious absorption feature in the Mg II h & k lines of the nearby (d=20.0 pc) K5 III star...
Analysis of H2 Emission from Mira B in UV Spectra from HST (2002)
Wood, Brian E., Karovska, Margarita, Raymond, John C.
We analyze Ly-alpha fluoresced H2 lines observed in the UV spectrum of Mira B. We identify 13 different sequences fluoresced by 13 different H2 transitions within the Ly-alpha line. The observed H2...
Wood, Brian E., Redfield, Seth, Linsky, Jeffrey L., Sahu, M. S.
We use ultraviolet spectra of Capella from the Hubble Space Telescope (HST) and Far Ultraviolet Spectroscopic Explorer (FUSE) satellites to study interstellar absorption lines from the Local...
Measured Mass Loss Rates of Solar-like Stars as a Function of Age and Activity (2002)
Wood, Brian E., Mueller, Hans-Reinhard, Zank, Gary P., Linsky, Jeffrey L.
Collisions between the winds of solar-like stars and the local ISM result in a population of hot hydrogen gas surrounding these stars. Absorption from this hot H I can be detected in high resolution...
The FUV spectrum of TW Hya. I. Observations of H$_2$ Fluorescence (2002)
Herczeg, Gregory J., Linsky, Jeffrey L., Valenti, Jeff A., Johns-Krull, Chris M., Wood, Brian E.
We observed the classical T Tauri star TW Hya with \textit{HST}/STIS using the E140M grating, from 1150--1700 \AA, with the E230M grating, from 2200--2900 \AA, and with \FUSE from 900--1180 \AA....
Thomas R. Ayres, Er Brown, Graham M. Harper, Rachel A. Osten, Jeffrey L. Linsky, Brian E. Wood, ...
We describe an extensive search with the Space Telescope Imaging Spectrograph (STIS) for ultraviolet coronal (T> 10 6 K) forbidden lines in a sample of 29 F–M dwarfs, giants, and supergiants....
Detection of H2 Emission from Mira B in UV Spectra from the Hubble Space Telescope (2001)
Wood, Brian E., Karovska, Margarita, Hack, Warren
We present ultraviolet spectra of Mira's companion star from the Space Telescope Imaging Spectrograph (STIS) instrument on board the Hubble Space Telescope (HST). The companion is generally assumed...
The 3D-structure of the LISM (2001)
Wood, Brian E., Redfield, Seth, Linsky, Jeffrey L.
We review what is currently known about the structure of interstellar material in the solar neighborhood, emphasizing how observations from the Hubble Space Telescope (HST) have improved our...
Wood, Brian E., Linsky, Jeffrey L., Mueller, Hans-Reinhard, Zank, Gary P.
We study H I Lyman-alpha absorption observed by the Hubble Space Telescope toward the nearby binary system Alpha Cen (G2 V+K0 V) and its distant companion star Proxima Cen (M5.5 Ve). Absorption from...
Hydrogen Lyman-alpha Absorption Predictions by Boltzmann Models of the Heliosphere (2000)
Wood, Brian E., Mueller, Hans-Reinhard, Zank, Gary P.
We use self-consistent kinetic/hydrodynamic models of the heliosphere to predict H I Lyman-alpha absorption profiles for various lines of sight through the heliosphere. These results are compared...
The Mg II and Lyman-alpha Lines of Nearby K Dwarfs: ISM Components and Flux Measurements (2000)
Wood, Brian E., Ambruster, Carol W., Brown, Alexander, Linsky, Jeffrey L.
We analyze local ISM absorption observed in the Lyman-alpha and Mg II h & k lines of six nearby K dwarf stars, using UV spectra of these stars obtained with the Goddard High Resolution Spectrograph...
Interpreting the Mg II h and k Line Profiles of Mira Variables (2000)
Wood, Brian E., Karovska, Margarita
We use radiative transfer calculations to reproduce the basic appearance of Mg II lines observed from Mira variables. These lines have centroids that are blueshifted by at least 30 km/s from the...
Heliospheric, Astrospheric, and Insterstellar Lyman-alpha Absorption Toward 36 Oph (2000)
Wood, Brian E., Linsky, Jeffrey L., Zank, Gary P.
We use high-resolution UV spectra taken by the Space Telescope Imaging Spectrograph instrument on board the Hubble Space Telescope to study the 5.5 pc line of sight to the K0 V star 36 Oph A. The one...
Studying the Pulsation of Mira Variables in the Ultraviolet (2000)
Wood, Brian E., Karovska, Margarita
We present results from an empirical study of the Mg II h & k emission lines of selected Mira variable stars, using spectra from the International Ultraviolet Explorer (IUE). The stars all exhibit...
Brian E. Wood, L. Linsky, Thomas R. Ayres
Our analysis of high-resolution Goddard High-Resolution Spectrograph (GHRS) spectra of late-type stars shows that the Si IV and C IV lines formed near 105 K can be decomposed into the sum of two...