Stellar Population Gradients in ULIRGs: Implications for Gas Inflow Timescales (2009)
Soto, Kurt T., Martin, Crystal L.
Optical spectroscopy using the echellete spectrograph and imager (ESI) on Keck II are presented for nearby major mergers of gas-rich galaxies. These Ultraluminous Infrared Galaxy (ULIRG) spectra show...
Martin, Crystal L., Bouche, Nicolas
We analyze the physical conditions in the low-ionization component of starburst outflows (in contrast to the high-ionization wind fluid observed in X-rays), based on new Keck/LRIS spectroscopy of...
Binary Quasars at High Redshift I: 24 New Quasar Pairs at z ~ 3-4 (2009)
Hennawi, Joseph F., Myers, Adam D., Shen, Yue, Strauss, Michael A., Djorgovski, S. G., Fan, Xiaohui, ...
The clustering of quasars on small scales yields fundamental constraints on models of quasar evolution and the buildup of supermassive black holes. This paper describes the first systematic survey to...
Discovery of a Giant Lya Emitter Near the Reionization Epoch (2008)
Ouchi, Masami, Ono, Yoshiaki, Egami, Eiichi, Saito, Tomoki, Oguri, Masamune, McCarthy, Patrick J., ...
We report the discovery of a giant Lya emitter (LAE) with a Spitzer/IRAC counterpart near the reionization epoch at z=6.595. The giant LAE is found from the extensive 1 deg^2 Subaru narrow-band...
The DEEP2 Redshift Survey: Lyman Alpha Emitters in the Spectroscopic Database (2008)
Sawicki, Marcin, Lemaux, Brian C., Guhathakurta, Puragra, Kirby, Evan N., Konidaris, Nicholas P., Martin, Crystal L., ...
We present the first results of a search for Lyman-alpha emitters (LAEs) in the DEEP2 spectroscopic database that uses a search technique that is different from but complementary to traditional...
AEGIS: The Nature of the Host Galaxies of Low-ionization Outflows at z < 0.6 (2008)
Sato, Taro, Martin, Crystal L., Noeske, Kai G., Koo, David C., Lotz, Jennifer M.
We report on a S/N-limited search for low-ionization gas outflows in the spectra of the 0.11 < z < 0.54 objects in the EGS portion of the DEEP2 survey. Doppler shifts from the host galaxy redshifts...
The Origin and Kinematics of Cold Gas in Galactic Winds: Insight from Numerical Simulations (2008)
Fujita, Akimi, Martin, Crystal L., Mac Low, Mordecai-Mark, New, Kimberly C. B., Weaver, Robert
We study the origin of Na I absorbing gas in ultraluminous infrared galaxies motivated by the recent observations by Martin of extremely superthermal linewidths in this cool gas. We model the effects...
A Magellan IMACS Spectroscopic Search for Lyman-Alpha Emitting Galaxies at Redshift 5.7 (2008)
Martin, Crystal L., Sawicki, Marcin, Dressler, Alan, McCarthy, Pat
We present results from a blind, spectroscopic survey for redshift ~5.7 Lyman-alpha-emitting galaxies using the Inamori Magellan Areal Camera and Spectrograph. A total of ~200 square arcminutes were...
RevMexAA (Serie de Conferencias), 9, 270--272 (2000) (2008)
Excitation Of The, Crystal L. Martin
I review the properties of the di#use ionized gas (DIG) in nearby star-forming galaxies emphasizing the evidence for a secondary excitation mechanism in addition to stellar photoionization. I address...
EXCITATION OF THE DIFFUSE IONIZED GAS IN GALAXIES (2007)
Se revisan las propiedades del gas ionizado difuso (DIG) en galaxias cercanas con formacion estelar, enfatizando la evidencia para un mecanismo de excitacion adicional a la fotoionizacion estelar....
Ellison, Sara L., Hennawi, Joseph F., Martin, Crystal L., Sommer-Larsen, Jesper
We report coincident damped Lyman alpha (DLA) and sub-DLA absorption at z = 2.66 and z = 2.94 towards the z ~ 3 13.8 arcsecond separation binary quasar SDSS 1116+4118 AB. At the redshifts of the...
The Ionization State of Sodium in Galactic Winds (2006)
Murray, Norman, Martin, Crystal L., Quataert, Eliot, Thompson, Todd A.
Roughly 80% of Ultraluminous Infrared Galaxies (ULIRGs) show blue shifted absorption in the resonance lines of neutral sodium, indicating that cool winds are common in such objects, as shown by Rupke...
Excitation of the diffuse ionized gas in galaxies (2006)
Excitation of the diffuse ionized gas in galaxies
Sato, Taro, Martin, Crystal L.
We report on a spectroscopic confirmation of narrowband-selected [OII] emitters in Abell 851 catalogued by Martin et al. (2000). The optical spectra obtained from the Keck I Low Resolution Imaging...
Sato, Taro, Martin, Crystal L.
We report on the environments, kinematics, and SFH of [OII]-selected objects in the z=0.4 galaxy cluster A851, using Keck optical spectra. A large fraction (~55%) of cluster [OII] emitters show...
The kinematics of neutral gas and warm ionized gas have been mapped in one-dimension across ultraluminous starburst galaxies using interstellar absorption and emission lines, in Keck II ESI spectra....
Magnetic Fields in Starburst Galaxies and The Origin of the FIR-Radio Correlation (2006)
Thompson, Todd A., Quataert, Eliot, Waxman, Eli, Murray, Norman, Martin, Crystal L.
We estimate minimum energy magnetic fields (B_min) for a sample of galaxies with measured gas surface densities, spanning from normal spirals to starbursts. We show that the ratio of the minimum...
Extended star formation and molecular gas in the tidal arms near NGC 3077 (2006)
Walter, Fabian, Martin, Crystal L., Ott, Jürgen
We report the detection of ongoing star formation in the prominent tidal arms near NGC 3077 (member of the M81 triplet). In total, 36 faint compact H II regions are identified, covering an area of...
Preliminary Results from a Spectrosopic LyA Survey at Redshift 5.7 with IMACS (2005)
Martin, Crystal L., Sawicki, Marcin, Dressler, Alan, McCarthy, Patrick J.
We describe preliminary results from an ultra-sensitive, spectroscopic emission-line survey and illustrate the challenges inherent in identifying high-redshift LyA emitters. Our multi-slit windows...
Measurements of interstellar absorption lines in 18 ultraluminous infrared galaxies (ULIGs) have been combined with published data, in order to reassess the dependence of galactic outflow speeds on...
A Keck/HIRES Study of Kinematics of the Cold Interstellar Medium in Dwarf Starburst Galaxies (2004)
Schwartz, Colleen M., Martin, Crystal L.
We have obtained high resolution Echelle spectra (R = 30,000-50,000) of the Na D absorption doublet (5890A, 5896A) for six dwarf starburst galaxies and two more luminous starbursts: M82 and NGC 1614....
The Space Density of Redshift 5.7 Ly-Alpha Emitters (2003)
Martin, Crystal L., Sawicki, Marcin
We present results from a blind, spectroscopic search for redshift 5.7 LyA emission-line galaxies at Keck I. Using a band-limiting filter and custom slitmask, the LRIS detector was covered with low...
Chandra Observations of Expanding Shells in the Dwarf Starburst Galaxy NGC 3077 (2003)
Ott, Juergen, Martin, Crystal L., Walter, Fabian
Deep Chandra observations (53 ks, ACIS-S3) of NGC 3077, a starburst dwarf galaxy in the M 81 triplet, resolve the X-ray emission from several supershells. The emission is brightest in the cavities...
The Hubble Deep Field South Flanking Fields (2002)
Lucas, Ray A., Baum, Stefi A., Brown, Thomas M., Casertano, Stefano, Conselice, Chris, De Mello, Duilia, ...
As part of the Hubble Deep Field South program, a set of shorter 2-orbit observations were obtained of the area adjacent to the deep fields. The WFPC2 flanking fields cover a contiguous solid angle...
Star Formation Thresholds in Galactic Disks (2001)
Martin, Crystal L., Kennicutt, Robert C.
We report the first results of a detailed study of the star formation law in a sample of 32 nearby spiral galaxies with well-measured rotation curves, HI and H$_2$ (as traced by CO) surface density...
Excitation of the diffuse ionized gas in galaxies (2000)
I review the properties of the di use ionized gas (DIG) in nearby star-forming galaxies emphasizing the evidence for a secondary excitation mechanism in addition to stellar photoionization. I address...
UV Diagnostics of the Interaction between Starburst Galaxies and the Intergalactic Medium (1998)
Both galaxies and the intergalactic medium evolve dramatically between $z \approx 2$ and the present. These changes are coupled via galactic winds, cloud accretion, and ionizing radiation....
Properties of Galactic Outflows: Measurements of the Feedback from Star Formation (1998)
Properties of starburst-driven outflows in dwarf galaxies are compared to those in more massive galaxies. Over a factor of roughly 10 in galactic rotation speed, supershells are shown to lift warm...
Images and longslit, echelle spectra of the \Ha emission from 14 dwarf galaxies and M82 have been used to identify expanding shells of ionized gas. Supershells (radius $>~300$ pc) are found in 12 of...
Martin, Crystal L., Kennicutt, Robert C.
We report measurements of He I 5876 emission from the ionized gas outside the HII regions in three Magellanic irregular galaxies. The mean reddening-corrected He I / H-alpha intensity ratio is 0.041...
We have combined measurements of the kinematics, morphology, and oxygen abundance of the ionized gas in \IZw18, one of the most metal-poor galaxies known, to examine the star formation history and...