Searching for Local Counterparts of High-redshift Poststarburst Galaxies in Integral Field Unit Spectroscopic Surveys of Nearby Galaxies

AbstractInterstellar dust is still the dominant uncertainty in Astronomy, limiting precision in e.g., cosmological distance estimates and models of how light is re-processed within a galaxy. When a foreground galaxy serendipitously overlaps a more distant one, the latter backlights the dusty structures in the nearer foreground galaxy. Such an overlapping or occulting galaxy pair can be used to measure the distribution of dust in the closest galaxy with great accuracy. The STARSMOG program uses HST observation of occulting galaxy pairs to accurately map the distribution of dust in foreground galaxies in fine (<100 pc) detail. Furthermore, Integral Field Unit observations of such pairs will map the effective extinction curve in these occulting galaxies, disentangling the role of fine-scale geometry and grain composition on the path of light through a galaxy.The overlapping galaxy technique promises to deliver a clear understanding of the dust in galaxies: the dust geometry, a probability function of the amount of dimming as a function of galaxy type, its dependence on wavelength, and evolution of all these properties with cosmic time using distant, high-redshift pairs.

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Near-infrared Integral-Field Spectrograph (NIFS): An Instrument Proposed for Gemini

Publications of the Astronomical Society of Australia ◽

10.1071/as99273 ◽

1999 ◽

Vol 16 (3) ◽

pp. 273-287 ◽

Cited By ~ 10

Author(s):

Peter J. McGregor ◽

Peter Conroy ◽

Gabe Bloxham ◽

Jan van Harmelen

Keyword(s):

Control System ◽

Near Infrared ◽

High Efficiency ◽

Low Cost ◽

High Redshift ◽

Target Velocity ◽

Wide Range ◽

Integral Field Spectrograph ◽

Field Unit ◽

Integral Field

AbstractIn late 1998 the International Gemini Project Office identified a need for a low cost, near-infrared spectrograph to be commissioned on the Gemini South telescope on the shortest possible timescale. In response, the Research School of Astronomy and Astrophysics of the Australian National University proposed to design, construct, and commission a near-infrared, integral-field spectrograph on Gemini. The science drivers and novel design of the Near-infrared Integral-Field Spectrograph (NIFS) are described in this paper. NIFS will achieve significant economies in cost and schedule in several ways:• By addressing targeted science with high efficiency. NIFS will primarily target velocity measurements in galaxies to study the demographics of black holes in galactic nuclei and the evolution of structural properties in high redshift galaxies. However, NIFS will also be applied to a wide range of general astronomical topics, but these will not dictate the instrument design.• By adopting a largely fixed-format design. A 3·2″ × 3·2″ ‘stair-case’ integral field unit (IFU) will feed a near-infrared spectrograph with four fixed-angle gratings mounted on a single grating wheel. A single, fixed-format camera will form the spectral image on a 2048 × 2048 Rockwell HgCdTe HAWAII-2 array. Two-pixel spectral resolving powers of ∼5400 will be achieved with complete wavelength coverage in each of the J, H, and K photometric bands through 32 optimally sampled 0·1″ wide slitlets. The velocity resolution of ∼55 km s−1 will be sufficient to achieve the targeted science objectives, and will allow software rejection of OH airglow lines.• By packaging the NIFS instrument within a duplicate of the Near-Infrared Imager (NIRI) cryostat. The NIRI cryostat, On-Instrument Wavefront Sensor (OIWFS), detector focusing mechanism, control system, and EPICS software will all be duplicated with only minimal change. Construction of the duplicate NIRI cryostat, OIWFS, and control system will be done by the University of Hawaii.

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A far-IR and optical 3D view of the starburst driven superwind in NGC 2146

Proceedings of the International Astronomical Union ◽

10.1017/s1743921314010187 ◽

2014 ◽

Vol 10 (S309) ◽

pp. 322-323

Author(s):

Kathryn Kreckel ◽

Lee Armus ◽

Brent Groves ◽

Mariya Lyubenova ◽

Tanio Diaz-Santos ◽

...

Keyword(s):

Galaxy Evolution ◽

Far Infrared ◽

Gas Phases ◽

Nearby Galaxies ◽

Imaging And Spectroscopy ◽

Field Unit ◽

Dust Distribution ◽

Integral Field ◽

Infrared Survey ◽

Fine Structure Lines

Galaxy outflows are a vital mechanism in the regulation of galaxy evolution through feedback and enrichment. NGC 2146, a nearby infrared luminous galaxy (LIRG), presents evidence for outflows along the disk minor axis in all gas phases (ionized, neutral atomic and molecular). We present new far-IR Herschel imaging and spectroscopy of this galaxy from the Key Insights on Nearby Galaxies: a Far-Infrared Survey with Herschel (KINGFISH) project, as well as new optical integral field unit spectroscopy, to map the kinematics and gas excitation in the central 5 kpc and trace the dust distribution (Kreckel et al.2014). We observe an increased velocity dispersion in the [OI] 62 um, [OIII] 88 um, [NII] 122 um and [CII] 158 um fine-structure lines that is spatially coincident with shocked gas above and below the disk.

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The impact of AGN on stellar kinematics and orbits in simulated massive galaxies

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/stz2318 ◽

2019 ◽

Vol 489 (2) ◽

pp. 2702-2722 ◽

Cited By ~ 6

Author(s):

Matteo Frigo ◽

Thorsten Naab ◽

Michaela Hirschmann ◽

Ena Choi ◽

Rachel S Somerville ◽

...

Keyword(s):

Star Formation ◽

High Redshift ◽

Stellar Kinematics ◽

Global Parameter ◽

Stellar Orbits ◽

Massive Galaxies ◽

Field Unit ◽

The Impact ◽

Integral Field

ABSTRACT We present a series of 10 × 2 cosmological zoom simulations of the formation of massive galaxies with and without a model for active galactic nucleus (AGN) feedback. Differences in stellar population and kinematic properties are evaluated by constructing mock integral field unit maps. The impact of the AGN is weak at high redshift when all systems are mostly fast rotating and disc-like. After z ∼ 1 the AGN simulations result in lower mass, older, less metal rich, and slower rotating systems with less discy isophotes – in general agreement with observations. 2D kinematic maps of in situ and accreted stars show that these differences result from reduced in-situ star formation due to AGN feedback. A full analysis of stellar orbits indicates that galaxies simulated with AGN are typically more triaxial and have higher fractions of x-tubes and box orbits and lower fractions of z-tubes. This trend can also be explained by reduced late in-situ star formation. We introduce a global parameter, ξ3, to characterize the anticorrelation between the third-order kinematic moment h3 and the line-of-sight velocity (Vavg/σ), and compare to ATLAS3D observations. The kinematic correlation parameter ξ3 might be a useful diagnostic for large integral field surveys as it is a kinematic indicator for intrinsic shape and orbital content.

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Seyferts in 3D: Probing the Kinematic Signatures of Gas Fueling

Proceedings of the International Astronomical Union ◽

10.1017/s1743921306005291 ◽

2006 ◽

Vol 2 (S235) ◽

pp. 94-94

Author(s):

Gaelle Dumas ◽

Eric Emsellem ◽

Carole G. Mundell

Keyword(s):

Kinematic Analysis ◽

3D Imaging ◽

Velocity Fields ◽

Active Galaxies ◽

Nuclear Activity ◽

Stellar Velocity ◽

Nearby Galaxies ◽

Field Unit ◽

And Control ◽

Integral Field

We have conducted a 3D imaging spectroscopic survey of 15 nearby Seyfert and control non-active galaxies, using the SAURON Integral Field Unit on the WHT. One goal of the project is to search for dynamical triggers of nuclear activity in nearby galaxies. We present here the preliminary results of the kinematic analysis of the gaseous and stellar velocity fields.

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H i-MaNGA: H i follow-up for the MaNGA survey

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/stz1889 ◽

2019 ◽

Vol 488 (3) ◽

pp. 3396-3405 ◽

Cited By ~ 6

Author(s):

Karen L Masters ◽

David V Stark ◽

Zachary J Pace ◽

Frederika Phipps ◽

Wiphu Rujopakarn ◽

...

Keyword(s):

Gas Content ◽

Data Set ◽

Sky Surveys ◽

Nearby Galaxies ◽

L Band ◽

Field Unit ◽

Green Bank Telescope ◽

Integral Field ◽

Cross Match

Abstract We present the H i-MaNGA programme of H i follow-up for the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey. MaNGA, which is part of the Fourth phase of the Sloan Digital Sky Surveys, is in the process of obtaining integral field unit spectroscopy for a sample of ∼10 000 nearby galaxies. We give an overview of the H i 21cm radio follow-up observing plans and progress and present data for the first 331 galaxies observed in the 2016 observing season at the Robert C. Bryd Green Bank Telescope. We also provide a cross-match of the current MaNGA (DR15) sample with publicly available H i data from the Arecibo Legacy Fast Arecibo L-band Feed Array survey. The addition of H i data to the MaNGA data set will strengthen the survey’s ability to address several of its key science goals that relate to the gas content of galaxies, while also increasing the legacy of this survey for all extragalactic science.

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The Mitchell Spectrograph: Studying Nearby Galaxies with the VIRUS Prototype

Advances in Astronomy ◽

10.1155/2013/641612 ◽

2013 ◽

Vol 2013 ◽

pp. 1-16

Author(s):

Guillermo A. Blanc

Keyword(s):

Spatial Distribution ◽

Cost Effective ◽

Medium Size ◽

Physical Parameters ◽

Wide Field ◽

Scientific Impact ◽

Nearby Galaxies ◽

Formation And Evolution ◽

Field Unit ◽

Integral Field

The Mitchell Spectrograph (a.k.a. VIRUS-P) on the 2.7 m Harlan J. Smith telescope at McDonald Observatory is currently the largest field of view (FOV) integral field unit (IFU) spectrograph in the world (1.7′×1.7′). It was designed as a prototype for the highly replicable VIRUS spectrograph which consists of a mosaic of IFUs spread over a16′diameter FOV feeding 150 spectrographs similar to the Mitchell. VIRUS will be deployed on the 9.2 meter Hobby-Eberly Telescope (HET) and will be used to conduct the HET Dark Energy Experiment (HETDEX). Since seeing first light in 2007 the Mitchell Spectrograph has been widely used, among other things, to study nearby galaxies in the local universe where their internal structure and the spatial distribution of different physical parameters can be studied in great detail. These observations have provided important insight into many aspects of the physics behind the formation and evolution of galaxies and have boosted the scientific impact of the 2.7 meter telescope enormously. Here I review the contributions of the Mitchell Spectrograph to the study of nearby galaxies, from the investigation the spatial distribution of dark matter and the properties of supermassive black holes, to the studies of the process of star formation and the chemical composition of stars and gas in the ISM, which provide important information regarding the formation and evolution of these systems. I highlight the fact that wide field integral field spectrographs on small and medium size telescopes can be powerful cost effective tools to study the astrophysics of galaxies. Finally I briefly discuss the potential of HETDEX for conducting studies on nearby galaxies. The survey parameters make it complimentary and competitive to ongoing and future surveys like SAMI and MANGA.

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SIFUS: SOAR integral field unit spectrograph

10.1117/12.461977 ◽

2003 ◽

Cited By ~ 3

Author(s):

Jacques R. D. Lepine ◽

Antonio C. de Oliveira ◽

Milito V. Figueredo ◽

Bruno V. Castilho ◽

Clemens Gneiding ◽

...

Keyword(s):

Field Unit ◽

Integral Field

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The DIVING3D Project: Analysis of the nuclear region of Early-type Galaxies

Proceedings of the International Astronomical Union ◽

10.1017/s174392132000157x ◽

2020 ◽

Vol 15 (S359) ◽

pp. 454-456

Author(s):

T. V. Ricci ◽

J. E. Steiner ◽

R. B. Menezes

Keyword(s):

Emission Lines ◽

H Ii Regions ◽

Sample Type ◽

Early Type ◽

Integral Field Spectroscopy ◽

Project Analysis ◽

Line Region ◽

Field Unit ◽

Integral Field

AbstractIn this work, we present preliminary results regarding the nuclear emission lines of a statistically complete sample of 56 early-type galaxies that are part of the Deep Integral Field Spectroscopy View of Nuclei of Galaxies (DIVING3D) Project. All early type galaxies (ETGs) were observed with the Gemini Multi-Object Spectrograph Integral Field Unit (GMOS-IFU) installed on the Gemini South Telescope. We detected emission lines in 93% of the sample, mostly low-ionization nuclear emission-line region galaxies (LINERs). We did not find Transition Objects nor H II regions in the sample. Type 1 objects are seen in ∼23% of the galaxies.

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Multiwavelength analysis of OH Megamaser galaxies: The case of IRAS11506-3851

Proceedings of the International Astronomical Union ◽

10.1017/s1743921320004317 ◽

2020 ◽

Vol 15 (S359) ◽

pp. 347-349

Author(s):

Carpes P. Hekatelyne ◽

Thaisa Storchi-Bergmann

Keyword(s):

Active Galactic Nuclei ◽

Hubble Space Telescope ◽

Galactic Nuclei ◽

Large Array ◽

Very Large Array ◽

Star Forming ◽

Star Forming Regions ◽

Field Unit ◽

Mixed Transition ◽

Integral Field

AbstractWe present Multi-Object Spectrograph (GMOS) Integral Field Unit (IFU), Hubble Space Telescope (HST) and Very Large Array (VLA) observations of the inner kpc of the OH Megamaser galaxy IRAS 11506-3851. In this work we discuss the kinematics and excitation of the gas as well as its radio emission. The HST images reveal an isolated spiral galaxy and the combination with the GMOS-IFU flux distributions allowed us to identify a partial ring of star-forming regions surrounding the nucleus with a radius of ≍500 pc. The emission-line ratios and excitation map reveal that the region inside the ring present mixed/transition excitation between those of Starbursts and Active Galactic Nuclei (AGN), while regions along the ring are excited by Starbursts. We suggest that we are probing a buried or fading AGN that could be both exciting the gas and originating an outflow.

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