High-resolution UKIRT observations of circumnuclear star formation in M100

S. D. Ryder; J. H. Knapen

doi:10.1046/j.1365-8711.1999.02204.x

High-resolution UKIRT observations of circumnuclear star formation in M100

S. D. Ryder^*, J. H. Knapen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (NGC 4321), accompanied by near-infrared spectroscopy. We identify a total of 43 distinct regions in the K-band image, and determine magnitudes and colours for 41 of them. By comparison with other near-infrared maps we also derive colour excesses and K-band extinctions for the knots. Combining the imaging and spectroscopic results, we conclude that the knots are the result of bursts of star formation within the last 15-25 Myr. We discuss the implications of these new results for our dynamical and evolutionary understanding of this galaxy.

Original language	English
Pages (from-to)	L7-L12
Number of pages	6
Journal	Monthly Notices of the Royal Astronomical Society
Volume	302
Issue number	1
DOIs	https://doi.org/10.1046/j.1365-8711.1999.02204.x
Publication status	Published - 1 Jan 1999
Externally published	Yes

Keywords

Galaxies: evolution
Galaxies: individual: M100 (NGC 4321)
Galaxies: kinematics and dynamics
Galaxies: structure
Infrared: galaxies

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10.1046/j.1365-8711.1999.02204.x

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title = "High-resolution UKIRT observations of circumnuclear star formation in M100",

abstract = "We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (NGC 4321), accompanied by near-infrared spectroscopy. We identify a total of 43 distinct regions in the K-band image, and determine magnitudes and colours for 41 of them. By comparison with other near-infrared maps we also derive colour excesses and K-band extinctions for the knots. Combining the imaging and spectroscopic results, we conclude that the knots are the result of bursts of star formation within the last 15-25 Myr. We discuss the implications of these new results for our dynamical and evolutionary understanding of this galaxy.",

keywords = "Galaxies: evolution, Galaxies: individual: M100 (NGC 4321), Galaxies: kinematics and dynamics, Galaxies: structure, Infrared: galaxies",

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year = "1999",

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doi = "10.1046/j.1365-8711.1999.02204.x",

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T1 - High-resolution UKIRT observations of circumnuclear star formation in M100

AU - Ryder, S. D.

AU - Knapen, J. H.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (NGC 4321), accompanied by near-infrared spectroscopy. We identify a total of 43 distinct regions in the K-band image, and determine magnitudes and colours for 41 of them. By comparison with other near-infrared maps we also derive colour excesses and K-band extinctions for the knots. Combining the imaging and spectroscopic results, we conclude that the knots are the result of bursts of star formation within the last 15-25 Myr. We discuss the implications of these new results for our dynamical and evolutionary understanding of this galaxy.

AB - We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (NGC 4321), accompanied by near-infrared spectroscopy. We identify a total of 43 distinct regions in the K-band image, and determine magnitudes and colours for 41 of them. By comparison with other near-infrared maps we also derive colour excesses and K-band extinctions for the knots. Combining the imaging and spectroscopic results, we conclude that the knots are the result of bursts of star formation within the last 15-25 Myr. We discuss the implications of these new results for our dynamical and evolutionary understanding of this galaxy.

KW - Galaxies: evolution

KW - Galaxies: individual: M100 (NGC 4321)

KW - Galaxies: kinematics and dynamics

KW - Galaxies: structure

KW - Infrared: galaxies

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DO - 10.1046/j.1365-8711.1999.02204.x

M3 - Article

AN - SCOPUS:0002771429

SN - 0035-8711

VL - 302

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

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High-resolution UKIRT observations of circumnuclear star formation in M100

Abstract

Keywords

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