[ITAL]Hubble Space Telescope[/ITAL] Images of the HH 34 Jet and Bow Shock: Structure and Proper Motions

2002 ◽  
Vol 123 (1) ◽  
pp. 362-381 ◽  
Author(s):  
Bo Reipurth ◽  
Steve Heathcote ◽  
Jon Morse ◽  
Pat Hartigan ◽  
John Bally
Keyword(s):  
Hubble Space Telescope ◽  
Shock Structure ◽  
Bow Shock ◽  
Proper Motions ◽  
Space Telescope

scholarly journals Measuring proper motions of galactic dwarf galaxies with Hubble Space Telescope

2007 ◽  
Vol 3 (S248) ◽  
pp. 244-247 ◽  
Author(s):  
S. Piatek ◽  
C. Pryor
Keyword(s):  
Research Group ◽  
Dwarf Galaxies ◽  
Hubble Space Telescope ◽  
Proper Motions ◽  
Future Directions ◽  
Space Telescope ◽  
The Past ◽  
Scientific Justification ◽  
Satellite Galaxies ◽  
Using Data

AbstractOver the past several years, our research group has been measuring proper motions for nearby dwarf satellite galaxies using data taken with the Hubble Space Telescope. In order to measure proper motions with an expected size of several tens of milliarcseconds per century using a time baseline of 2-4 years, our work required that positions of stars and QSOs be measured to an accuracy of ~0.25 mas (~0.005 pixel). This contribution reviews the scientific justification of this work and our methodology. It concludes with a few general results and future directions.

[ITAL]Hubble Space Telescope[/ITAL] WFPC2 Imaging of XZ Tauri:Time Evolution of a Herbig-Haro Bow Shock

1999 ◽  
Vol 515 (1) ◽  
pp. L35-L38 ◽  
Author(s):  
John E. Krist ◽  
Karl R. Stapelfeldt ◽  
Christopher J. Burrows ◽  
J. Jeff Hester ◽  
Alan M. Watson ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Bow Shock ◽  
Space Telescope

Internal kinematics of multiple stellar populations in globular clusters

2019 ◽  
Vol 14 (S351) ◽  
pp. 324-328
Author(s):  
Mattia Libralato
Keyword(s):  
High Precision ◽  
Globular Clusters ◽  
Hubble Space Telescope ◽  
Stellar Populations ◽  
Stellar Systems ◽  
Proper Motions ◽  
Space Telescope ◽  
Formation And Evolution ◽  
Galactic Globular Clusters ◽  
Shed Light

AbstractSpectroscopy and photometry have revealed existence, complexity and properties of the multiple stellar populations (mPOPs) hosted in Galactic globular clusters. However, the conundrum of the formation and evolution of mPOPs is far from being completely exploited: the available pieces of information seem not enough to shed light on these topics. Astrometry, and in particular high-precision proper motions, can provide us the sought-after answers about how mPOPs formed and have evolved in these ancient stellar systems. In the following, I present a brief overview of the observational results on the internal kinematics of the mPOPs in some GCs thanks to Hubble Space Telescope high-precision proper motions.

scholarly journals The Y dwarf population with HST: unlocking the secrets of our coolest neighbours – I. Overview and first astrometric results

2020 ◽  
Vol 501 (1) ◽  
pp. 911-915
Author(s):  
C Fontanive ◽  
L R Bedin ◽  
D C Bardalez Gagliuffi
Keyword(s):  
Proper Motion ◽  
Hubble Space Telescope ◽  
Proper Motions ◽  
Brown Dwarf ◽  
Space Telescope ◽  
First Results

ABSTRACT In this paper, we present our project that aims at determining accurate distances and proper motions for the Y brown dwarf population using the Hubble Space Telescope. We validate the program with our first results, using a single new epoch of observations of the Y0pec dwarf WISE J163940.83−684738.6. These new data allowed us to refine its proper motion and improve the accuracy of its parallax by a factor of three compared to previous determinations, now constrained to ϖ = 211.11 ± 0.56 mas. This newly derived absolute parallax corresponds to a distance of 4.737 ± 0.013 pc, an exquisite and unprecedented precision for faint ultracool Y dwarfs.

scholarly journals Proper Motions of the HH 111 Jet Observed with the [ITAL]Hubble Space Telescope[/ITAL]

2001 ◽  
Vol 559 (2) ◽  
pp. L157-L161 ◽  
Author(s):  
Patrick Hartigan ◽  
Jon A. Morse ◽  
Bo Reipurth ◽  
Steve Heathcote ◽  
John Bally
Keyword(s):  
Hubble Space Telescope ◽  
Proper Motions ◽  
Space Telescope

scholarly journals Hubble Space Telescope Proper Motions and Stellar Dynamics in the Core of the Globular Cluster 47 Tucanae

2006 ◽  
Vol 166 (1) ◽  
pp. 249-297 ◽  
Author(s):  
Dean E. McLaughlin ◽  
Jay Anderson ◽  
Georges Meylan ◽  
Karl Gebhardt ◽  
Carlton Pryor ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Hubble Space Telescope ◽  
Stellar Dynamics ◽  
Proper Motions ◽  
Space Telescope ◽  
The Core

scholarly journals Improved Hubble Space Telescope proper motions for Tycho-G and other stars in the remnant of Tycho's Supernova 1572

2014 ◽  
Vol 439 (1) ◽  
pp. 354-371 ◽  
Author(s):  
L. R. Bedin ◽  
P. Ruiz-Lapuente ◽  
J. I. González Hernández ◽  
R. Canal ◽  
A. V. Filippenko ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Proper Motions ◽  
Space Telescope

scholarly journals 50 Years of Herbig-Haro Research

1997 ◽  
Vol 182 ◽  
pp. 3-18 ◽  
Author(s):  
Bo Reipurth ◽  
Steve Heathcote
Keyword(s):  
High Resolution ◽  
Hubble Space Telescope ◽  
Spectroscopic Studies ◽  
Proper Motions ◽  
Space Telescope ◽  
Starting Point ◽  
Hh Objects ◽  
High Resolution Images

We review the events leading to the discovery of Herbig-Haro objects half a century ago, and the early efforts to understand the nature of these enigmatic objects. The recognition in the mid-seventies of the shocked nature of HH objects heralded a burst of observational and theoretical efforts, and further impetus was soon after provided by the discovery of high proper motions, and by detailed optical, infrared and ultraviolet spectroscopic studies. The recognition in the early eighties of HH jets was the starting point for the increasingly intense studies during the last 15 years which we discuss in this Symposium. In the second half of our review, we summarize the insights into the nature of HH jets provided by analyzing high resolution images obtained with the Hubble Space Telescope of two of the finest known HH jets, HH 47 and HH 111.

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