ALFALFA DISCOVERY OF THE NEARBY GAS-RICH DWARF GALAXY LEO P. II. OPTICAL IMAGING OBSERVATIONS

Katherine L. Rhode; John J. Salzer; Nathalie C. Haurberg; Angela Van Sistine; Michael D. Young; Martha P. Haynes; Riccardo Giovanelli; John M. Cannon; Evan D. Skillman; Kristen B. W. McQuinn; Elizabeth A. K. Adams

doi:10.1088/0004-6256/145/6/149

Back

ALFALFA DISCOVERY OF THE NEARBY GAS-RICH DWARF GALAXY LEO P. II. OPTICAL IMAGING OBSERVATIONS

Journal article

Open access

Peer reviewed

ALFALFA DISCOVERY OF THE NEARBY GAS-RICH DWARF GALAXY LEO P. II. OPTICAL IMAGING OBSERVATIONS

Katherine L. Rhode, John J. Salzer, Nathalie C. Haurberg, Angela Van Sistine, Michael D. Young, Martha P. Haynes, Riccardo Giovanelli, John M. Cannon, Evan D. Skillman, Kristen B. W. McQuinn, …

The Astronomical journal, Vol.145(6), 149

06/01/2013

DOI: 10.1088/0004-6256/145/6/149

Files and links (1)

url

https://doi.org/10.1088/0004-6256/145/6/149View

Published (Version of record) Open Access

Abstract

We present results from ground-based optical imaging of a low-mass dwarf galaxy discovered by the ALFALFA 21 cm Hi survey. Broadband (BVR) data obtained with the WIYN 3.5 m telescope at Kitt Peak National Observatory (KPNO) are used to construct color-magnitude diagrams of the galaxy's stellar population down to V-o similar to 25. We also use narrowband H alpha imaging from the KPNO 2.1 m telescope to identify a H II region in the galaxy. We use these data to constrain the distance to the galaxy to be between 1.5 and 2.0 Mpc. This places Leo P within the Local Volume but beyond the Local Group. Its properties are extreme: it is the lowest-mass system known that contains significant amounts of gas and is currently forming stars.

Astronomy & Astrophysics

Physical Sciences

Science & Technology

Details

Title: Subtitle: ALFALFA DISCOVERY OF THE NEARBY GAS-RICH DWARF GALAXY LEO P. II. OPTICAL IMAGING OBSERVATIONS
Creators: Katherine L. Rhode - Indiana University Bloomington
John J. Salzer - Indiana University Bloomington
Nathalie C. Haurberg - Indiana University Bloomington
Angela Van Sistine - Indiana University Bloomington
Michael D. Young - Indiana University Bloomington
Martha P. Haynes - Cornell University
Riccardo Giovanelli - Cornell University
John M. Cannon - Macalester College
Evan D. Skillman - University of Minnesota
Kristen B. W. McQuinn - University of Minnesota
Elizabeth A. K. Adams - Cornell University
Resource Type: Journal article
Publication Details: The Astronomical journal, Vol.145(6), 149
Publisher: Iop Publishing Ltd
DOI: 10.1088/0004-6256/145/6/149
ISSN: 0004-6256
eISSN: 1538-3881
Number of pages: 11
Grant note: Brinson Foundation 0847109 / Direct For Mathematical & Physical Scien; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) 1107390 / Division Of Astronomical Sciences; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) AST-0847109 / NSF Faculty Early Career Development (CAREER) award; National Science Foundation (NSF) National Aeronautics and Space Administration; National Aeronautics & Space Administration (NASA) AST-0607007; AST-1107390; AST-1211683 / NSF; National Science Foundation (NSF)
Language: English
Date published: 06/01/2013
Academic Unit: Physics and Astronomy
Record Identifier: 9984627294602771

Metrics

1 Record Views